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: 1753 # 4314 @ 3538 # 7342 @ 6326 @ 6393 @ 136 @ 161 @ 4337

Output: 10988


Input: Consider Input: 4001 # 3984 # 4426 # 3582 @ 9317 # 8035 @ 9225 @ 1079


Output: 3595