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: 3276 # 8656 # 2580 @ 7528 @ 344 @ 6066 # 9323 # 6974 # 6635

Output: -16954


Input: Consider Input: 1569 # 724 @ 3737 @ 6220 # 1360 # 172 # 1027 # 3566 # 9663

Output: -4986


Input: Consider Input: 4520 @ 3665 # 8729 @ 4166 @ 1982 # 8711


Output: -3107