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

Example Input: 415 @ 1312 # 9916 @ 9168 @ 1911
Example Output: 2890

Example Input: 331 # 9967 @ 21 @ 480 # 3926 @ 8770 @ 5909 @ 6288 # 1226
Example Output: 6680

Example Input: 7073 @ 1540 @ 2367
Example Output:
10980