TASK DEFINITION: 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.
PROBLEM: 1837 - 6362 - 226

SOLUTION: 8425

PROBLEM: 6178 - 1637 - 8197 - 6437 + 4591 - 6995 + 3562 + 9474

SOLUTION: 11817

PROBLEM: 7422 + 9807 + 5334 - 4325 + 2722 - 6974 - 3767 - 8381

SOLUTION:
13006