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: 1649 + 4642 + 613 - 7051 - 8575

SOLUTION: 12020

PROBLEM: 6681 - 1947 - 955 + 9470 - 4512 - 9603 + 5822 + 9404 - 8896

SOLUTION: 7898

PROBLEM: 2998 + 2625 + 881 + 5969 - 8220

SOLUTION:
1743