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: 9056 @ 9894 # 9773 # 4508 # 5642

Output: -973


Input: Consider Input: 7266 # 5601 @ 6292 # 3129 # 4781 # 6736 # 1566 # 7004


Output: -15259