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: 2738 # 5562 @ 4529 @ 5438 @ 1799

Output: 8942


Input: Consider Input: 2821 @ 5327 # 3350 # 3607 @ 7010 @ 6824 # 9975 # 38

Output: 5012


Input: Consider Input: 799 # 203 # 5421 @ 9247 # 7107 # 5304 # 4171


Output: -12160