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: 2863 @ 9899 # 2358

SOLUTION: 10404

PROBLEM: 815 @ 7862 # 6166

SOLUTION: 2511

PROBLEM: 7903 # 2202 @ 4254

SOLUTION:
9955

