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: 1185 # 6431 @ 1326 # 2840 # 9276

Output: -16036


Input: Consider Input: 6514 # 8296 # 4939 # 5783 @ 1077 @ 3237 @ 5941 # 7665 # 2408

Output: -12322


Input: Consider Input: 840 @ 3567 # 9054 @ 1900 # 6913 # 3831 @ 7978 @ 1794 @ 8698


Output: 4979