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: 4130 @ 6495 # 3973

Output: 6652


Input: Consider Input: 3351 @ 1445 @ 5875 # 1267 # 4225 @ 4098 @ 3552

Output: 12829


Input: Consider Input: 2833 @ 3842 @ 9032 # 4949 @ 4886 # 8645


Output: 6999