60.
18+18+18+19+23+23+24+24=167
18 + 23 + 23 = 64
23 + 16 + 16 = 55
16 + 23 + 14 = 53
24 + 23 + 22 + 21 + 20 + 19 + 18 + 17 + 16 + 15 + 14 + 13 + 12 + 11 + 10 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 = 300
23
13 + 23 + 12 + 7 = 55
-23+16 is equal to -7.
90
12 + 15 + 63 + 12 + 24 + 34 + 23 + 15 = 198
-23