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: 931 # 5023 @ 6056 # 4419 # 1833 @ 5052 @ 1632 # 2282 @ 9337

Output: 9451


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

Output: 20003


Input: Consider Input: 5914 @ 6913 # 2797 @ 6215 @ 9710 @ 6437


Output: 32392