2
Sources
1
1
0
0
0
0
0
0
4K
0
0
0
0
2
0
0
0
2
1
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
