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: 6439 - 6685 + 6156 - 3314 + 6845 - 6872

A: 10309
****
Q: 1928 - 8869 + 937 + 6209 + 5391 - 5357 + 6743

A: -3126
****
Q: 3648 - 8353 + 5419 + 1566 - 7943 - 4901

A:
17860
****