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.

Q: 146 - 5209 + 892

A: 4463
****
Q: 2537 - 3199 + 5925 + 8172 + 3564 + 8810

A: -20735
****
Q: 6602 + 6354 - 2197 + 775 - 4900 + 6638 - 6872 + 6176

A:
628
****