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: 3337 @ 9906 @ 9733 # 853 @ 5075 # 2064 @ 9450 # 3886

Output: 30698


Input: Consider Input: 6472 # 6421 @ 7649 @ 4005

Output: 11705


Input: Consider Input: 7016 @ 386 # 3305 @ 5816 @ 2273


Output: 12186