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: 3351 @ 1445 @ 5875 # 1267 # 4225 @ 4098 @ 3552

Output: 12829


Input: Consider Input: 5347 # 326 # 6112 # 4655 @ 2124

Output: -3622


Input: Consider Input: 1267 @ 8103 # 5081 # 4643 # 8637 @ 6070


Output: -2921