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: 6267 @ 3304 @ 9078 @ 9734 # 2947 # 4223 @ 4824 # 3116

Output: 22921


Input: Consider Input: 5211 # 3266 @ 3042 @ 254 # 7823 @ 4298 # 8042 # 1629 # 6738

Output: -14693


Input: Consider Input: 8743 # 9288 @ 3095


Output: 2550