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: 1477 @ 6645 @ 6272 # 3080
Example Output: 11314

Example Input: 4899 # 3034 @ 3351 @ 7952 @ 4527 # 2700 # 3143 @ 3642 # 2445
Example Output: 13049

Example Input: 2621 @ 6101 @ 9952 # 2456 @ 8385 # 5106 @ 8318 @ 3393
Example Output:
31208