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: 2020 @ 862 # 5780

SOLUTION: -2898

PROBLEM: 5010 # 2117 @ 6121 # 6244 @ 1089 @ 5871

SOLUTION: 9730

PROBLEM: 361 @ 6371 # 4950

SOLUTION:
1782