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

Output: 11704


Input: Consider Input: 5513 @ 1221 @ 8910 @ 8422

Output: 24066


Input: Consider Input: 931 @ 7427 # 6865 # 496


Output: 997