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: 3782 @ 4127 # 1265 # 1395 @ 2430 @ 6990 @ 8573 @ 8170

Output: 31412


Input: Consider Input: 7178 # 2086 # 1606 @ 4624 @ 4559 # 4855

Output: 7814


Input: Consider Input: 7806 # 6020 # 4616 @ 3594 # 6312 # 5362 # 4403 @ 3666


Output: -11647