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: 2738 # 5562 @ 4529 @ 5438 @ 1799

Output: 8942


Input: Consider Input: 6277 # 2029 # 4158 @ 5412 # 6845 # 6694 @ 5432

Output: -2605


Input: Consider Input: 4620 @ 1620 # 847 @ 6070 @ 7190 @ 9987 @ 2002


Output: 30642