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: 1077 @ 2451 @ 9445 @ 1297 @ 2639 # 27 # 9331 @ 8713

Output: 16264


Input: Consider Input: 636 # 9939 @ 3769 @ 8322 # 3343 @ 8680 # 1129 # 9882 # 3400

Output: -6286


Input: Consider Input: 4926 @ 1360 @ 7922 @ 8818 # 8177 # 7408


Output: 7441