In this task you will be given an arithmetic operation and you have to find its answer. The operators '+' and '-' have been replaced with new symbols. Specifically, '+' has been replaced with the symbol '@' and '-' with the symbol '#'. You need to perform the operations in the given equation return the answer

Input: Consider Input: 4101 @ 2536 # 502

Output: 6135

Input: Consider Input: 9549 @ 21 # 6714 # 2406 # 2527 # 8527 @ 1769

Output: -8835

Input: Consider Input: 4796 @ 5665 # 1555 @ 8347 # 8080 # 9547 # 3145
Output: -3519