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: 6322 # 7953 # 5 @ 7093 @ 5659 @ 5045 # 904

Output: 15257


Input: Consider Input: 3615 @ 7429 @ 6810 # 207 @ 1232 # 5621 @ 6745

Output: 20003


Input: Consider Input: 4009 @ 5647 @ 7806 # 2497 @ 9497


Output: 24462