4 1
1 1 3 4 0
1 2 4 1 0
1 2 1 3 0
1 2 1 3 0
1 2 1 0
1 2 0
1 3 0
1 3 0
1 3 0
1 3 0
1 3 0
1 3 4 0
1 3 0
1 3 4 0
1 3 4 0
1 4 2 0
1 4 0
1 4 1 2 0
1 4 2 0
1 4 0
1 4 3 0
1 4 3 0
1 4 3 1 0
1 4 3 2 0
1 4 3 1 0
1 4 0
1 4 3 2 0
1 4 3 2 0
1 4 3 2 0
1 4 0
1 4 1 2 0
1 4 3 2 0
0
"1" "2" "3" "4" "f:a31"