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: 5709 + 8211 + 3945 + 1143 - 7258

SOLUTION: -332

PROBLEM: 2588 + 7474 + 7336 + 2767 - 1155 - 3435 - 6693

SOLUTION: -3706

PROBLEM: 1627 - 7798 - 6316 + 2158 + 2940 - 6660 + 1843

SOLUTION:
15460