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: 3367 # 4567 @ 8786 @ 9643 @ 105 # 6364 @ 9695 # 2387 @ 8798

Output: 27076


Input: Consider Input: 549 @ 2405 # 8368 @ 806 @ 5639

Output: 1031


Input: Consider Input: 788 @ 3289 # 3052 @ 5397


Output: 6422