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: 2738 # 5562 @ 4529 @ 5438 @ 1799

Output: 8942


Input: Consider Input: 7290 # 6052 @ 1676 # 7149 # 6471 # 2664


Output: -13370