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: 9930 # 7864 @ 6797 # 6092 @ 1146 @ 1388 # 8545 # 9163

Output: -12403


Input: Consider Input: 2496 # 1245 # 9250 @ 6888 # 7427


Output: -8538