
2
310
320
1 .........0...........................
0 .........1...........................
310
320
0 .........1.......................
1 .........1...................
2 .........1........................
1 .........1..........................................
1 .........1.............................................
1 .........1.................................
1 .........1...........................
1 .........1...........................
1 .........1..............................
1 .........1..................................
1 .........1...................................
2 .........2...................................
1 .........0........................
0 .........1........................