|   | 13 + ( - 14 ) + 19 + 11 = |
|
( - 19 ) - ( - 3 ) - ( - 7 ) - 10 = |
|   | 18 + ( - 16 ) - 12 + 18 = |
|
( - 10 ) - ( - 5 ) - 1 - ( - 5 ) = |
|   | |
|   | ( - 15 ) - 16 + ( - 14 ) - ( - 12 ) = |
|
12 + ( - 15 ) + ( - 19 ) + ( - 17 ) = |
|   | ( - 12 ) - ( - 8 ) + 2 + ( - 17 ) = |
|
( - 13 ) - ( - 1 ) + ( - 12 ) - 1 = |
|   | ( - 1 ) - ( - 14 ) - 8 - 7 = |
|
( - 16 ) - 5 - ( - 8 ) + ( - 8 ) = |
|   | ( - 10 ) - ( - 6 ) + 5 + ( - 11 ) = |
|
9 + ( - 15 ) - ( - 5 ) - ( - 7 ) = |
|   | |