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: 6946 + 6834 - 1169 + 9756 + 2063 - 4750 - 425 + 1121 + 8155

A: -14639
****
Q: 6574 + 470 - 8486 + 4421 + 2614 + 1257

A:
6298
****