( - 17 ) + 2 + 19 - 7 = -3

13 + ( - 14 ) + 19 + 11 = 29

( - 19 ) - ( - 3 ) - ( - 7 ) - 10 = -19

18 + ( - 16 ) - 12 + 18 = 8

( - 10 ) - ( - 5 ) - 1 - ( - 5 ) = -1

( - 5 ) + 13 + 9 - 18 = -1

( - 5 ) - 17 + 12 + 15 = 5

( - 15 ) - 16 + ( - 14 ) - ( - 12 ) = -33

12 + ( - 15 ) + ( - 19 ) + ( - 17 ) = -39

( - 12 ) - ( - 8 ) + 2 + ( - 17 ) = -19

( - 13 ) - ( - 1 ) + ( - 12 ) - 1 = -25

( - 1 ) - ( - 14 ) - 8 - 7 = -2

( - 16 ) - 5 - ( - 8 ) + ( - 8 ) = -21

( - 10 ) - ( - 6 ) + 5 + ( - 11 ) = -10

9 + ( - 15 ) - ( - 5 ) - ( - 7 ) = 6

( - 17 ) - 9 + 6 - 14 = -34