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: 2588 @ 7474 @ 7336 @ 2767 # 1155 # 3435 # 6693

Output: 8882


Input: Consider Input: 1463 @ 3742 @ 6816 @ 2090 @ 7068 @ 283 # 5740 @ 4067

Output: 19789


Input: Consider Input: 3677 # 4555 # 8734 # 8308


Output: -17920