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: 138 + 3973 - 6085 - 3324 + 6921 + 4411 + 1113 + 8310

SOLUTION: -15181

PROBLEM: 8838 + 1241 - 4918 - 8353 - 4691 - 5880

SOLUTION: 31439

PROBLEM: 56 + 6370 + 5891 - 594 + 3463 - 7737 - 9632 + 2401

SOLUTION:
-106