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: 2495 @ 7683 @ 706 @ 5746 @ 7998 @ 5941

Output: 30569


Input: Consider Input: 7021 # 2043 @ 7414 # 2632 @ 2939 @ 8718 @ 2731

Output: 24148


Input: Consider Input: 3040 # 5501 # 7050 @ 4977 @ 98 @ 3087


Output: -1349


