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: 1614 @ 5794 # 2578

Output: 4830


Input: Consider Input: 1731 # 9932 # 4056 # 2303

Output: -14560


Input: Consider Input: 6693 @ 5417 # 1557 # 9325 @ 1958


Output: 3186


