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: 693 # 2562 @ 733 # 3913 @ 310

Output: -4739


Input: Consider Input: 7295 @ 8477 @ 8646 @ 3487 # 114 # 9184

Output: 18607


Input: Consider Input: 6592 @ 8654 # 7343 @ 783


Output: 8686