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: 7106 # 9524 # 2673 # 4668 @ 6755 # 5653 # 2688 # 9360

Output: -20705


Input: Consider Input: 4101 @ 5888 # 877 # 7900 # 6062 @ 6246

Output: 1396


Input: Consider Input: 5120 @ 9884 @ 1045


Output: 16049