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: 353 # 9525 @ 9923 @ 4025 # 1922 @ 4751

Output: 7605

Input: Consider Input: 6055 # 1440 # 3272 # 5643 @ 150 @ 7658 # 8655 @ 8463 # 8156

Output: -4840

Input: Consider Input: 9228 # 1658 # 3124 @ 8195 # 5291 @ 9735 # 8791 @ 9333
Output: 17627