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.
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Question: 7337 + 5801 - 8640 - 4143 - 2557

Answer: 16876


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

Answer: 20492


Question: 8961 - 9462 - 6289 + 7185 - 9921 - 3769 + 5143 - 1717

Answer:
27791