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: 5010 # 2117 @ 6121 # 6244 @ 1089 @ 5871

Output: 9730


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

Output: -18181


Input: Consider Input: 6357 @ 9479 # 4625 @ 5211


Output: 16422