1
Sources
1
0
0
1
0
2
0
0
1
1
0
0
0
0
0
2
2
0
1
25K
0
1
1
0
0
1
0
1
0
1
2
0
0
1
0
1
1
0
2
0
1
0
21K
0
1
0
1
0
0
