TASK DEFINITION: In this task you will be given an arithmetic operation and you have to find its answer. The symbols of operators '+' and '-' has been swapped i.e you need to perform subtraction when you see a '+' symbol and  addition in case of '-' symbol.
PROBLEM: 9051 - 8971 + 6555 - 1135 - 4091 + 9374 + 9487 + 1868

SOLUTION: -4036

PROBLEM: 3719 - 4138 - 7321 - 9097 + 4558 + 9667 + 1909 + 647 - 6132

SOLUTION: 13626

PROBLEM: 3778 - 973 + 6976 - 5652 - 6735 + 3907 - 1863 - 1996

SOLUTION:
10114