Calculated Industries 4225 Pocket Reference Manual Download

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Designed for today’s concrete professional,
the all-new

ConcreteCalc Pro

adds even

more power to the already powerful

Construction Master

line-up. Like earlier

models, this calculator is so simple to use,
even the novice user can easily solve
dimension-related problems.

•

Solve Dimensional Math with Ease

•

Dimensional Conversions

•

Imperial/Metric Conversions

•

Weight/Volume Conversions

•

Rectangular Area/Volume Calculations

•

Block Quantity Solutions

•

Footing Volume Calculations

•

Instant Square-Up (Diagonal) Solutions

•

Drop Distance Calculations

•

Circular Area and Circumference

•

Arc Length Calculations

•

Calculate Stair Risers, Treads, Stringers
and Inclination Angle

•

Material Estimations

•

Paperless Tape

ONCRETE

ALC

™

Summary of Contents for 4225

Page 1: ...Pocket Reference Guide Insert This Direction CONSTRUCTION MASTER CONCRETECALC PRO ADVANCED FEET INCH FRACTION CALCULATOR Model 4225 ...

Page 2: ...elated problems Solve Dimensional Math with Ease Dimensional Conversions Imperial Metric Conversions Weight Volume Conversions Rectangular Area Volume Calculations Block Quantity Solutions Footing Volume Calculations Instant Square Up Diagonal Solutions Drop Distance Calculations Circular Area and Circumference Arc Length Calculations Calculate Stair Risers Treads Stringers and Inclination Angle M...

Page 3: ...ulations 23 Squaring Up a Concrete Slab 26 Calculating Rebar 27 Calculating Loads 29 Blocks and Bricks 30 Polygon Equal Sided 31 Concrete Footing 32 Finding Weight Per Volume 33 Concrete Bags 33 Calculating Drop 34 Stair Calculations 36 APPENDIX 40 Accuracy Errors 40 Battery and Auto Shut Off 41 Default Settings 42 Area Formulas 43 Surface Area and Volume Formulas 44 REPAIR AND RETURN 45 Warranty ...

Page 4: ...rns all power off clearing all non perma nent registers o On Clear Key Turns on power Pressing once clears the display Pressing twice clears all temporary values Ç Convert Key Used with the dimensional keys to convert between dimen sions or with other keys to access special functions T Store Key Used for stor ing values Recall Key Recalls stored values GETTING STARTED ...

Page 5: ...erts to Inches Entry can be whole or decimal num bers Also used with the key for entering fractional Inch values e g 9 i 1 2 Repeated press es during conversions tog gle between Fractional and Decimal Inches Fraction Bar Key Used to enter Fractions Fractions can be entered as proper 1 2 1 8 1 16 or improper 3 2 9 8 If the denomina tor bottom is not entered the calculator s fractional accuracy sett...

Page 6: ...ulates Volume wall Area and total room Area This is a perma nent entry stored value holds when turned off Arc Circle Keys A Arc Calculates arc Length or degree chord Length segment Area pie slice Area and segment rise ç Circle Enters diameter and calculates circle Area and circumference Ç A Radius Enters or calcu lates circle radius Ç W Chord Enters or calcu lates the chord Length of a circle segm...

Page 7: ... linear Feet of rebar you can enter the Length to calculate the total Weight based on the Weight per Foot of the stored rebar size e g 1 0 0 f r r Ç r Inset Stores rebar inset Default is 3 inches Rebar inset is the spacing between the rebar and the perimeter of the forms or foundation R Rebar Size Key Stores rebar size Rebar size can be entered as a number for rebar sizes 3 11 14 and 18 e g 5 R fo...

Page 8: ...ult size is 8 cubic Yards Ç 5 Bags Calculates number of concrete bags for a given Volume and stored bag size T 5 Bag Size Stores bag size Volume per bag of concrete Bag size must be entered as a cubic value e g 6 7 f f f T 5 Default is 0 666667 cubic Feet per bag based on a standard 80 pound bag B Blocks Bricks Calculates the number of concrete blocks required to fill a given Area This key can als...

Page 9: ...r paver bricks This is based on Modular U S brick size of 3 5 8 Inches x 2 1 4 Inches x 7 5 8 Inches including 3 8 Inch mortar 4 Inches x 2 5 8 Inches x 8 Inches ß Square Up Key Calculates the Square Up diagonal Length given entered Length and Width values d Drop Key Calculates total drop or fall over an entered Length given entered percentage drop Inch per Foot drop or degrees of drop Continued p...

Page 10: ...h and stored footing Area T F Footing Area Stores footing Area Footing Area must be entered as a square value e g 2 6 4 i i T F The default footing is 264 square Inches Ç l Polygon Calculates full angle bi sect angle side Length perimeter and Area based on entered radius and number of sides ...

Page 11: ...RS 3 Riser Overage Underage R 4 Tread Width T WD 5 Number of Treads TRDS 6 Tread Overage Underage T 7 Stairwell Opening OPEN 8 Stringer Length STRG 9 Angle of Incline INCL 10 Stored or Calculated Run RUN 11 Stored or Calculated Rise RISE 12 Stored Desired Riser Height R HT 13 Stored Desired Tread Width T WD 14 Stored Headroom HDRM 15 Stored Floor Thickness FLOR Cont d ...

Page 12: ...ht 10 Desired Tread Width 10 Floor Thickness 6 8 Headroom Customizable Stair Settings T 7 Stores Desired Riser Height T 9 Stores Desired Tread Width T 8 Stores Floor Thickness Ç T TSets Headroom TT Miscellaneous Functions a Backspace Key Paperless Tape Ç T Preference Settings Ç 1 x Reciprocal Finds the reciprocal of a number e g 8 Ç 0 125 Ç x Clear All Returns all stored values to the default sett...

Page 13: ...er entering a value and pressing T 0 continue pressing the 0 digit key until you ve reached the desired Weight per Volume format To recall your setting press 0 Ç 6 Tons Enters or converts to Tons Ç 4 Pounds Enters or con verts to Pounds Ç 3 Metric Tons Enters or converts to Metric Tons Ç 1 Kilograms Enters or converts to Kilograms μ Memory Ç μ M Memory Minus T 1 M1 Storage Register T 2 M2 Storage ...

Page 14: ...ub setting Use the key to back up Press any key to exit Preferences PRESS Ç AND SETTING FUNCTION First press Fractional Resolution of T 1 16 1 32 1 64 1 2 1 4 1 8 1 16 repeats options Second press Area Displays of T Std 0 SQ FEET 0 SQ YD 0 SQ M Std repeats options Third press Volume Displays of T Std 0 CU YD 0 CU FEET 0 CU M Std repeats options Cont d ...

Page 15: ...nch Fifth press Exponential Mode of T OFF On OFF repeats options Sixth press Meter Linear Displays of T 0 000 M FLOAt M floating point 0 000 M repeats options Seventh press Decimal Degree Displays of T 0 00º FLOAt floating point 0 00º repeats options Eighth press Fractional Mode of T Std COnSt Std repeats options Note Press o at anytime to exit the Preference Settings Cont d ...

Page 16: ...hen the denominator bottom number Note If a denominator is not entered the frac tional setting value is used Examples of how linear dimensions are entered press o after each entry DIMENSION KEYSTROKES 5 Yards 5 y 5 Feet 1 1 2 Inch 5 f 1 i 1 2 17 5 Meters 1 7 5 m Square and Cubic Dimensions Examples of how Square and Cubic dimensions are entered press o after each entry DIMENSION KEYSTROKES 5 Cubic...

Page 17: ... Ç i 126 INCH Ç y 3 5 YD Ç m 3 200 M Ç 9 3200 4 MM Ç 7 320 04 CM Repeated presses of f or i will toggle between Feet Inch Fractions and Decimal Feet or Inches Square and Cubic Conversions Convert 14 square Feet to square Yards KEYSTROKE DISPLAY 1 4 f f 14 SQ FEET Ç y 1 555556 SQ YD Convert 12 cubic Feet to cubic Yards KEYSTROKE DISPLAY 1 2 f f f 12 CU FEET Ç y 0 444444 CU YD ...

Page 18: ...The Weight Volume ratio is permanently stored by entering the value and pressing T T 0 The default value is 1 5 Tons per cubic Yard Find the Weight of 15 cubic Yards at 1 75 Tons per cubic Yard then convert to other Weights KEYSTROKE DISPLAY 1 7 5 T 0 1 75 Ton Per CU YD 1 5 y y y 15 CU YD Ç 6 tons 26 25 Ton Ç 4 lbs 52500 LB Ç 1 kg 23813 6 kG Ç 3 met tons 23 8136 MET Ton Converting D M S Convert 23...

Page 19: ...lso makes the calculator simple to use for dimensional applications Adding and Subtracting Strings of Dimensions Add the following measurements 6 Feet 2 1 2 Inches 11 Feet 5 1 4 Inches 18 25 Inches Then subtract 2 1 8 Inches KEYSTROKE DISPLAY 6 f 2 i 1 2 1 1 f 5 i 1 4 1 8 2 5 i 19 FEET 2 INCH 2 i 1 8 18 FEET 11 7 8 INCH Multiplying Dimensions Multiply 5 Feet 3 Inches by 11 Feet 6 1 2 Inches KEYSTR...

Page 20: ...t or division percentage calcula tions It can be used with any type of number in any dimension Feet Inch Millimeter etc and any type of convention non dimensioned linear square or cubic Calculating Percentages Find 18 of 500 Feet KEYSTROKE DISPLAY 5 0 0 f x 1 8 90 FEET 0 INCH Add 10 to 137 square Feet KEYSTROKE DISPLAY 1 3 7 f f 1 0 150 7 SQ FEET Take 20 from 552 Feet 6 Inches KEYSTROKE DISPLAY 5 ...

Page 21: ...al in Memory μ Display Clear Memory Clear Memory Ç Memory is semi permanent clearing only when you 1 turn off the calculator 2 press 3 press Ç 4 press Ç x Clear All When memory is recalled μ con secutive presses of μ will display the calculated average and total count of the accumulated values Example KEYSTROKE DISPLAY 3 5 5 μ M 355 2 5 5 μ M 255 7 4 5 Ç μ M 745 μ TTL 135 μ AVG 45 μ CNT 3 M 135 M ...

Page 22: ...All is performed Previewing Paperless Tape KEYSTROKE DISPLAY 1 Enter a string of numbers 4 f 4 FEET 0 INCH 5 f 9 FEET 0 INCH 6 f 15 FEET 0 INCH 7 f 22 FEET 0 INCH 2 Access the Tape function TTL 22 FEET 0 INCH 3 Scroll from first value to total 01 4 FEET 0 INCH 02 5 FEET 0 INCH 03 6 FEET 0 INCH 04 7 FEET 0 INCH TTL 22 FEET 0 INCH 4 Scroll to last 2 values 04 7 FEET 0 INCH 03 6 FEET 0 INCH 5 Exit Ta...

Page 23: ... SQ FEET W SQUP 25 FEET 0 INCH W PER 70 FEET 0 INCH Using the Multi Function h Key to Find Volume Wall Area and Room Area Find the Volume wall Area and total surface room Area if you have a Length of 15 feet Width of 20 Feet and Height of 12 Feet Room Area includes 4 walls plus ceiling Area KEYSTROKE DISPLAY o o 0 1 5 f l LNTH 15 FEET 0 INCH 2 0 f W WDTH 20 FEET 0 INCH 1 2 f h HGHT 12 FEET 0 INCH ...

Page 24: ...sures 45 Feet 5 Inches long x 13 Feet 6 Inches wide x 5 Inches deep If concrete is 65 per cubic Yard what will it cost KEYSTROKE DISPLAY o o 0 4 5 f 5 i l LNTH 45 FEET 5 INCH 1 3 f 6 i W WDTH 13 FEET 6 INCH 5 i h h VOL 9 461806 CU YD x 6 5 Ç 0 615 02 total cost Complex Concrete Volume Cont d A B C 27 0 38 2 8 6 9 0 4 2 9 6 ...

Page 25: ...c Yard KEYSTROKE DISPLAY 1 Clear calculator o o 0 2 Find Area A and add to Memory 3 8 f 2 i 4 f 2 i l LNTH 34 FEET 0 INCH 2 7 f W WDTH 27 FEET 0 INCH W AREA 918 SQ FEET μ M 918 SQ FEET 3 Find Area B and add to Memory 4f2il LNTH 4 FEET 2 INCH 8f6iW WDTH 8 FEET 6 INCH W AREA 35 41667 SQ FEET μ M 35 41667 SQ FEET 4 Find Area C and add to Memory 9 f l LNTH 9 FEET 0 INCH 9f6iW WDTH 9 FEET 6 INCH W AREA...

Page 26: ...A 78 53982 SQ INCH ç CIRC 31 7 16 INCH 3 Convert to decimal Inch Ç i 31 41593 INCH Arc Lengths Find the arc Length of an 85 portion of a circle with a 5 Foot diameter KEYSTROKE DISPLAY 1 Clear calculator and enter diameter o o 0 5 f ç DIA 5 FEET 0 INCH 2 Enter arc angle then find arc Length chord segment Area pie slice Area and segment rise 8 5 A A ARC 3 FEET 8 1 2 INCH A CORD 3 FEET 4 9 16 INCH A...

Page 27: ...h a diameter of 2 Feet 4 Inches and a Height of 4 Feet 6 Inches Note For a cylinder use the Column function KEYSTROKE DISPLAY 1 Find circle Area o o 0 2 f 4 i ç DIA 2 FEET 4 INCH ç AREA 4 276057 SQ FEET 2 Enter Height and find Volume 4 f 6 i h HGHT 4 FEET 6 INCH Ç ç COL 19 24226 CU FEET ...

Page 28: ...6 03521 CU FEET To access cone Volume you must press the ç key three times after Ç Volume of a Semicircular Pad You want to calculate the Volume of a semi circular pad with a diameter of 16 Feet and a thickness of 4 Inches Use the ç key to find circle Area KEYSTROKE DISPLAY 1 Clear calculator o o 0 2 Enter diameter 1 6 f ç DIA 16 FEET 0 INCH 3 Find circle Area ç AREA 201 0619 SQ FEET 4 Divide by 2...

Page 29: ...ter 5 f 2 i 3 4 ç DIA 5 FEET 2 3 4 INCH 3 Find total Volume 1 0 f h Ç ç COL 214 7607 CU FEET Ç y 7 954101 CU YD x 3 23 8623 CU YD 4 Convert to Tons Ç 6 35 79345 Ton If it is not 1 5 Ton Per CU YD enter 1 5 T 0 SQUARING UP A CONCRETE SLAB Square up a concrete slab measuring 45 Feet 6 Inches by 24 Feet 4 Inches KEYSTROKE DISPLAY 1 Clear calculator o o 0 2 Enter Length Width and solve for diagonal Le...

Page 30: ...d the total linear Feet of rebar for a 23 Feet x 16 Feet concrete slab using default values for Rebar size No 5 on center spacing 18 Inches and inset 3 Inches Note Overlap is not included in the calculation Any adjustments for on center spacing should be made in the center ...

Page 31: ...b Width 1 6 f W WDTH 16 FEET 0 INCH 8 Find rebar total linear Feet r RBAR 533 FEET 6 INCH 9 Find rebar total Weight r No 5 555 8428 LB 10 Display values used for calculating Rebar r No 5 0 625 INCH r R oc 18 INCH r R IN 3 INCH r LNTH 23 FEET 0 INCH r WDTH 16 FEET 0 INCH Rebar size can be entered as a number for rebar sizes 3 11 14 and 18 e g 5 R for 5 rebar or as a decimal or fractional value not ...

Page 32: ... Calculate Weight r RBAR 104 188 LB CALCULATING LOADS How many 8 cubic Yard truck loads would be needed to haul the dirt from an excava tion measuring 108 x 48 and 1 deep KEYSTROKE DISPLAY 1 Clear calculator o o 0 2 Enter load size 8 y y y T L L SZ 8 CU YD 3 Enter site Length 1 0 8 f l LNTH 108 FEET 0 INCH 4 Enter site Width 4 8 f W WDTH 48 FEET 0 INCH 5 Enter site Depth 1 f h HGHT 1 FEET 0 INCH 6...

Page 33: ...e other side is 15 Feet 8 Inches long The wall is to be 4 Feet high How many blocks are required to build this wall KEYSTROKE DISPLAY 1 Clear calculator o o 0 2 Enter block size 8 i x 1 6 i T B B AR 128 SQ INCH 3 Add both wall Lengths 2 2 f 1 5 f 8 i 37 FEET 8 INCH 4 Multiply Length times Height x 4 f 150 6667 SQ FEET 5 Find number of blocks and add 5 waste B BLKS 169 5 170 Blocks 5 177 975 178 Bl...

Page 34: ... 36 FEET 6 INCH x 8 f 292 SQ FEET 4 Find number of bricks B Bricks BLKS 2336 POLYGON Equal Sided Find the full angle bi sect angle side Length perimeter and Area of a pentagon shaped patio to be paved with bricks The radius is 7 Feet 5 Inches and the number of sides is five KEYSTROKE DISPLAY 1 Clear calculator o o 0 2 Enter radius 7f5iÇA RAD 7 FEET 5 INCH 3 Enter polygon sides and calculate 5 Ç l ...

Page 35: ... to find Volume 2 3 2 f 6 i F FTG 7 654321 CU YD Concrete Footings Continuous Lengths You are going to pour concrete for a 264 square Inch footing being used for the fol lowing continuous Lengths of footing 15 Feet 18 Feet 24 Feet and 33 Feet What is the total Volume of concrete you ll need KEYSTROKE DISPLAY 1 Clear calculator o o 0 2 Enter footing Area 2 6 4 i i T F F AR 264 SQ INCH 3 Add Lengths...

Page 36: ... 8 INCH 1 0 f h HGHT 10 FEET 0 INCH 4 Solve for Volume h VOL 3 950617 CU YD 5 Find Weight in Tons Ç 6 5 925926 Ton CONCRETE BAGS How many 80 lb bags of concrete would it take for a 4 x 8 slab 4 deep Use default of 0 666667 cubic Feet per bag KEYSTROKE DISPLAY 1 Multiply Length times Width times Depth o o 0 4 f x 8 f x 4 i 0 395062 CU YD 2 Find number of bags Ç 5 BAGS 16 Note To change your bag siz...

Page 37: ...ch per Foot KEYSTROKE DISPLAY 1 Clear calculator o o 0 2 Enter total Length of wall 1 4 f l LNTH 14 FEET 0 INCH 3 Enter 1 8 Inch drop per Foot and find amount of drop 1 8 d d DROP 0 FEET 1 3 4 INCH 4 Enter 1 4 Inch drop per Foot and find amount of drop 1 4 d d DROP 0 FEET 3 1 2 INCH 5 Enter 375 Inch drop per Foot and find amount of drop 3 7 5 i d d DROP 0 FEET 5 1 4 INCH 6 Convert to decimal Inche...

Page 38: ...four sections KEYSTROKE DISPLAY 1 Clear calculator o o 0 2 Enter wall section Length 1 5 f 5 i l LNTH 15 FEET 5 INCH 3 Enter drop per Foot to find the drop per section and the total drop Depth at 1st wall section 1 4 d d DROP 0 FEET 3 7 8 INCH 4 Find total drop Depth of 2nd through 4th wall sections d DROP 0 FEET 7 11 16 INCH d DROP 0 FEET 11 9 16 INCH d DROP 1 FEET 3 7 16 INCH Note Successive pre...

Page 39: ...ENCE GUIDE 36 STAIR CALCULATIONS The ConcreteCalc Pro can calculate the values used in stair building given entered values for floor to floor rise h or run of treads l based on desired riser Height and tread Width ...

Page 40: ...o 0 1 0 f 1 i h HGHT 10 FEET 1 INCH 1 2 f 5 i l LNTH 12 FEET 5 INCH 2 Recall stored 7 1 2 desired riser Height then find the stair values 7 R HT 7 1 2 INCH s R HT 7 9 16 INCH s RSRS 16 s R 0 INCH s T WD 9 15 16 INCH s TRDS 15 s T 0 1 16 INCH s OPEN 9 FEET 10 1 4 INCH s STRG 15 FEET 7 5 16 INCH s INCL 37 27 in the display means that the calculated riser Height exceeds the desired stored riser Heigh...

Page 41: ... 2 Recall stored desired stair riser Height 7 R HT 7 1 2 INCH 3 Recall stored desired stair tread Width 9 T WD 10 INCH 4 Find stair values s R HT 7 7 16 INCH s RSRS 16 s R 0 INCH s T WD 10 INCH s TRDS 15 s T 0 INCH s OPEN 10 FEET 1 INCH s STRG 15 FEET 6 15 16 INCH s INCL 36 64 To calculate stairs given run Length only If you have a value stored in Height it will be used in the stair calculation Yo...

Page 42: ... 1 2 f 5 i l LNTH 12 FEET 5 INCH 2 Recall stored 7 1 2 desired riser Height and find stair values 7 R HT 7 1 2 INCH Ç s R HT 7 1 8 INCH s RSRS 17 s R 0 1 8 INCH s T WD 9 5 16 INCH s TRDS 16 s T 0 INCH s OPEN 9 FEET 9 5 8 INCH s STRG 15 FEET 7 5 8 INCH s INCL 37 42 in the display means that the calculated riser Height exceeds the desired stored riser Height or the calculated tread Width is below th...

Page 43: ...splay the word ERROR To clear an error condition you must press the o button once At this point you must determine what caused the error and re key the problem Error Codes DISPLAY ERROR TYPE OFLO Overflow too large MATH Error Divide by 0 DIM Error Dimension error ENT Error Invalid entry error None Attempts to calculate stairs without entering rise and run Auto Range If an overflow is created becau...

Page 44: ...year plus for most people Should the display become very dim or erratic replace the battery WARNING Please use cau tion when disposing of your old batteries as they contain hazardous chemicals Your calculator is designed to shut itself off after about 8 12 minutes of non use Note Values in memory or shown on the display will be cleared Replacing the Battery Turn the calculator over and open user g...

Page 45: ...CU YD Block Area 128 SQ INCH Block Length 16 INCH Footing Area 264 SQ INCH If you replace your battery or perform a Full Reset press O hold down x and press o your calculator will return to the following settings in addition to those listed above PREFERENCE SETTINGS DEFAULT VALUE Fractional Resolution 1 16 Area Display Standard Volume Display Standard Stairway Headroom 6 FEET 8 INCH Exponent Off M...

Page 46: ...POCKET REFERENCE GUIDE 43 AREA FORMULAS ...

Page 47: ...POCKET REFERENCE GUIDE 44 SURFACE AREA AND VOLUME FORMULAS ...

Page 48: ... If your product won t turn on check the battery as outlined in the User s Guide 3 If you need more assistance please go to the website listed below 4 If you believe you need to return your product please call a Calculated Industries representative between the hours of 8 00am to 4 00pm Pacific Time for additional information and a Return Merchandise Authorization RMA Call Toll Free 1 800 854 8075 ...

Page 49: ...PAIRS ARE ATTEMPTED OR MADE SOME EXAMPLES OF DAMAGES NOT COVERED BY WARRANTY INCLUDE BUT ARE NOT LIMITED TO BATTERY LEAKAGE BENDING A BLACK INK SPOT OR VISIBLE CRACKING OF THE LCD WHICH ARE PRESUMED TO BE DAMAGES RESULT ING FROM MISUSE OR ABUSE To obtain warranty service in the U S please go to the website A repaired or replacement product assumes the remain ing warranty of the original product or...

Page 50: ...DURES MATHEMATICAL ACCURACY AND PREPRO GRAMMED MATERIAL IS SOLD AS IS AND YOU THE PURCHASER ASSUME THE ENTIRE RISK AS TO ITS QUALITY AND PERFORMANCE IN NO EVENT WILL CI BE LIABLE FOR DIRECT INDI RECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM ANY DEFECT IN THE PRODUCT OR ITS DOCUMENTATION The warranty disclaimer and remedies set forth above are exclusive and replace all others oral...

Page 51: ...king For New Ideas Calculated Industries a leading manufacturer of special function calculators and digital measuring instruments is always looking for new product ideas in these areas If you have an idea or a suggestion for improving this product or User s Guide please submit your comments online at www calculated com under Contact Us Product Idea Submittal Agreement Thank you ...

Page 52: ...ies LLC 2007 Pocket Reference Guide copyrighted by Calculated Industries Inc 2007 ConcreteCalc is a trademark and Construction Master and Calculated Industries are registered trademarks of Calculated Industries Inc ALL RIGHTS RESERVED CALCULATED INDUSTRIES 4840 Hytech Drive Carson City NV 89706 U S A 1 800 854 8075 Fax 1 775 885 4949 E mail info calculated com www calculated com Designed in the US...

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