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: 3249 @ 313 @ 7029 @ 5721 @ 7626

Output: 23938


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

Output: 19789


Input: Consider Input: 9918 @ 2385 @ 8054 @ 6302 @ 2160 # 8571


Output: 20248


