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: 7149 - 7250 - 2026 - 4929 - 5525 + 1967 + 895 + 4245 - 720

SOLUTION: 20492

PROBLEM: 5799 + 5384 + 4924 + 5003 + 983 + 2274 - 5524

SOLUTION: -7245

PROBLEM: 2107 + 1424 + 8578 + 8386 - 8191 + 1961 + 3245 - 5627

SOLUTION:
-7669