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: 5175 # 1386 # 5328 # 898 @ 5361 # 376 @ 1286 @ 861

Output: 4695


Input: Consider Input: 2678 # 5467 @ 8355 # 3124 # 5654

Output: -3212


Input: Consider Input: 2121 # 7810 # 6909 @ 5584 # 6472 @ 2283


Output: -11203