0
2
0
2
0
2
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
是这样
0
1
0
1
0
1
0
1
0
1
0
1
0
1