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: 519 @ 5751 @ 8900 @ 3476 # 8727 # 9607 # 350 @ 8481

Output: 8443


Input: Consider Input: 5610 # 3034 @ 9312 @ 7337 @ 2731 @ 8581 @ 5926 # 2102 @ 2137

Output: 36498


Input: Consider Input: 7662 @ 6855 @ 7906 @ 1967 @ 8789 @ 9790 # 9567 @ 6826


Output: 40228