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.

1737 + 1422 + 9162 - 7244 + 6133
-7736

1989 - 7828 - 4806 - 7481 + 9860 - 9696 - 7086 + 272 + 8952
19802

1011 - 5205 - 9511 - 6109

21836