02 2 2 11 28 9 42 49 8 31 21 0X X X X X X
1.0
2
2
2
11
28
9
42
49
8
31
21
0
x
x
x
x
x
x
2
2
2
11
28
9
42
49
8
31
21
0
x
x
x
x
x
x