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: 4688 # 4301 # 9301 # 7246 # 6377 @ 8027 @ 425 @ 3557

Output: -10528


Input: Consider Input: 9746 # 6804 @ 5800 @ 8118 @ 2515 @ 1083 # 8754

Output: 11704


Input: Consider Input: 5066 @ 980 # 8186 # 1880 # 9870


Output: -13890