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: 2036 # 2136 @ 2740 # 8018 # 8379 @ 5952 # 3539 # 1201 # 5870

Output: -18415


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

Output: -3622


Input: Consider Input: 6139 # 4630 # 4050 @ 902 @ 1467 @ 3893 # 4012


Output: -291