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: 2787 @ 3800 # 142 # 7750 # 8581 @ 5447 @ 1512 @ 6550

Output: 3623

Input: Consider Input: 192 # 4739 @ 5302 @ 6325 @ 5528 @ 1101 # 157 # 6921 @ 5541

Output: 12172

Input: Consider Input: 5345 @ 1253 @ 6978 @ 8118 # 4199 @ 6135 # 5876 @ 403
Output: 18157