TASK DEFINITION: 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
PROBLEM: 8422 @ 5670 # 5825 @ 3613

SOLUTION: 11880

PROBLEM: 6340 # 5642 @ 8051 # 3877 # 2824 # 3105 # 9957 @ 9874 # 6399

SOLUTION: -7539

PROBLEM: 3116 @ 9738 # 3314

SOLUTION:
9540