843
1
0
843
0
1
843
2
0
843
0
1
843
1
0
842
2
0
842
1
0
842
3
0
842
2
0
842
1
0
841
1
0
841
1
0
841
1
0
841
1
0
841
0
3
840
2
0
840
1
0
840
1
0
840
1
0
840
1
0
840
0
1
840
0
3
840
0
1
840
2
0
839
0
1
839
0
1
838
1
0
838
0
3
838
0
3
838
2
0
838
2
0
838
1
0
838
1
0
837
1
0
837
0
1
837
3
0
837
2
0
837
0
1
836
1
1
836
1
0
836
1
0
836
1
0
836
3
0
836
2
0
836
1
0
836
1
0
836
0
2
836
4
0