1
Sources
1
1
0
1
1
1
1
0
0
1
1
1
0
2
1
0
0
0
0
0
0
1
3
1
1
0
1
1
0
0
0
1
1
1
0
0
2
0
0
1
1
0
1
1
1
0
0
1
1
