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: 5235 @ 3917 @ 4902 @ 3831 # 6517

Output: 11368


Input: Consider Input: 9393 # 4611 @ 7005 @ 379 @ 4723 # 7554 # 1755


Output: 7580