0
spreading
1
3
3
1
4
3
4
5
1
6
3
3
2
5
1
2
2
3
1
2
4
5
3
0
0
1
5
0
0
1
2
0
0
0
0
3
1
1
5
5
6
2
3
4
3
0
2
2
1
3
2
2
1
0
1
4