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: 4238 # 9059 # 3579 @ 2750 # 6861 # 5756 @ 9729

Output: -8538


Input: Consider Input: 9807 @ 9345 # 5133 # 8042 @ 1499 # 8153 # 638

Output: -1315


Input: Consider Input: 6277 # 2029 # 4158 @ 5412 # 6845 # 6694 @ 5432


Output: -2605


