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: 581 # 2278 @ 452 # 5411 # 7564 @ 8148 # 2350 # 8956 # 4877

Output: -22255


Input: Consider Input: 9110 # 7535 @ 8117 # 9919 @ 6813 @ 187 # 5187

Output: 1586


Input: Consider Input: 5273 # 6558 # 6771 @ 6752 # 5127 # 4445 # 6570 # 2294


Output: -19740


