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: 2510 - 5839 + 9950 + 740

A: -2341
****
Q: 3709 + 206 - 4363 + 3129 + 2506

A: 2231
****
Q: 9998 - 4601 - 6601

A:
21200
****