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: 2342 # 5338 @ 345 @ 9010 @ 5234 @ 9613

Output: 21206

Input: Consider Input: 4428 # 2569 @ 338 # 967 @ 2206

Output: 3436

Input: Consider Input: 5245 # 4418 @ 690 @ 3949 @ 2566 @ 5517 # 811
Output: 12738