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: 6039 @ 1273 # 2162 # 5061 @ 5087 @ 4703

Output: 9879


Input: Consider Input: 2020 @ 862 # 5780

Output: -2898


Input: Consider Input: 2243 @ 7792 @ 8384 @ 8912 # 7491 @ 2879 @ 529 @ 3253


Output: 26501