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: 8901 - 4785 + 1969 + 5985 + 517 + 5651 + 170

SOLUTION: -606

PROBLEM: 1137 - 2413 - 5470 - 9797 + 2566

SOLUTION: 16251

PROBLEM: 266 - 8137 - 8584 + 1219

SOLUTION:
15768