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: 2370 # 437 # 89 # 6625 # 2724 @ 1767 # 2848 @ 3753

Output: -4833


Input: Consider Input: 9938 # 267 # 6696 # 8186 # 5729 # 8517 # 6331 @ 7607

Output: -18181


Input: Consider Input: 4303 @ 4581 @ 3027 # 9269 @ 3325


Output: 5967