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: 8079 @ 5498 @ 5803 @ 711 # 9604 @ 7533

Output: 18020


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

Output: -2541


Input: Consider Input: 6166 # 7478 @ 5666 # 3674 # 9499 # 4035 @ 1569 @ 1533 # 8785


Output: -18537