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: 1439 @ 4809 @ 6755 # 4840 @ 491 @ 9049 @ 8905 @ 8915

Output: 35523


Input: Consider Input: 2475 # 126 @ 138 # 2303 # 5327 # 6412 # 9849 # 8474 # 6460

Output: -36338


Input: Consider Input: 8236 # 4019 # 3480 # 2466 @ 1248 # 4417 @ 4462


Output: -436