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: 2653 @ 9718 # 3237 @ 2973 # 6895 # 18

SOLUTION: 5194

PROBLEM: 8780 # 5826 # 420 @ 8814 @ 5786 # 1725

SOLUTION: 15409

PROBLEM: 1107 @ 9957 @ 3044 @ 3999 # 9003 # 1965 # 2472 # 5067

SOLUTION:
-400

