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: 1948 @ 7201 @ 611 # 9763 # 2998 # 5097 # 9302 # 3012 # 8272

Output: -28684


Input: Consider Input: 6322 # 7953 # 5 @ 7093 @ 5659 @ 5045 # 904

Output: 15257


Input: Consider Input: 5992 @ 7637 # 7427 @ 1102 @ 677 @ 9685 @ 6972


Output: 24638