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: 5193 # 9816 # 9875 # 1011 @ 1147 @ 5023

Output: -9339


Input: Consider Input: 634 # 6766 # 1458 # 4376 @ 9425

Output: -2541


Input: Consider Input: 6603 # 3783 @ 3030 # 5787 @ 8478 @ 3046 # 1629


Output: 9958