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: 4324 # 426 # 9171 # 980 @ 9454 @ 9720 # 7367 # 9266 # 1237

Output: -4949


Input: Consider Input: 1477 @ 6645 @ 6272 # 3080

Output: 11314


Input: Consider Input: 9360 @ 8596 @ 8447 # 5236 @ 2257 @ 6027 @ 7399


Output: 36850