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: 7347 # 9135 # 9303 @ 1078 # 3054 @ 4217 @ 4075

Output: -4775


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

Output: 3623


Input: Consider Input: 3178 # 5652 @ 4423 @ 5461 # 1002 # 535 @ 1907 # 5456 # 8863


Output: -6539