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: 5253 @ 2450 @ 1316 @ 9889 @ 6449 @ 4948

Output: 30305


Input: Consider Input: 4331 # 7606 @ 9043 @ 9912 @ 1560 # 5858 @ 703

Output: 12085


Input: Consider Input: 2945 # 798 @ 4863 # 2042 @ 1072 @ 9113 @ 6486


Output: 21639