0
1
1
0
1
1
0
1
1
0
1
1
0
2
4
0
1
1
0
2
1
0
4
8
0
8
16
0
1
1
0
1
1
0
1
1
0
1
1
0
1
1
0
0
1
0
0
1
0
0
1
0
8
4
0
0
1
0
1
1
