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: 5235 @ 3917 @ 4902 @ 3831 # 6517

Output: 11368


Input: Consider Input: 5968 # 833 # 9263 @ 5675 @ 3262 # 2158

Output: 2651


Input: Consider Input: 851 # 6192 # 3664 @ 56 @ 9906 @ 4668 # 5812 @ 3070 @ 2311


Output: 5194