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: 7252 # 8553 # 4853 @ 6748 # 3750

Output: -3156


Input: Consider Input: 2030 # 4671 # 6277 @ 7403 @ 211 @ 1842 # 9247

Output: -8709


Input: Consider Input: 2524 @ 484 @ 3165


Output: 6173