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: 5986 # 3224 # 3957 @ 1893 @ 9453 @ 3954 # 476 # 5750 # 5163

Output: 2716


Input: Consider Input: 2611 @ 6783 @ 8407 # 5813 @ 4138

Output: 16126


Input: Consider Input: 1116 @ 5345 # 3725 # 73 # 5973 # 7929 # 5187 # 8396


Output: -24822