6 12
1 2 1 1 1 1 1 1 1 1 4 5
1 2 -1 20 -1 -1 -1 -1 -1 200 3 60
-3 -3 -4 -5 6 -7 8 -9 -10 -1 60 7
-2 -4 -5 -6 -6 7 -8 -9 -10 -1 90 100
-20 -40 -4 -5 -6 -6 -7 -8 -9 -10 2 3
1 2 3 5 6 7 8 9 10 4 1 2
