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: 6050 # 5266 # 3005

Output: -2221


Input: Consider Input: 9942 @ 4126 @ 294 @ 6323 @ 9325 # 2366 # 3185 @ 8413 @ 6924

Output: 39796


Input: Consider Input: 3270 # 9876 # 9157 @ 7126


Output: -8637