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: 6467 # 8145 # 9388 # 9232

Output: -20298


Input: Consider Input: 9004 @ 9151 # 5283


Output: 12872