1 2 5 8 1
1 4 13 20 3
-1 2 -5 -9 5
-1 0 -7 -12 6
-1 -1 -9 -16 7
-2 -2 -12 -19 8
-3 -4 -14 -22 9
-4 -5 -16 -26 10
-4 -6 -19 -30 11
-5 -8 -21 -33 12
