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: 1221 @ 4619 # 3319 @ 2958

SOLUTION: 5479

PROBLEM: 9720 @ 6485 @ 1745 @ 728

SOLUTION: 18678

PROBLEM: 2853 @ 2447 @ 3565

SOLUTION:
8865

