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: 4100 @ 4500 @ 5166 @ 7442 @ 3258

SOLUTION: 24466

PROBLEM: 1855 # 9818 @ 3927 @ 9533 # 8557 @ 619 # 7543 # 2844

SOLUTION: -12828

PROBLEM: 8399 @ 608 @ 4025 @ 2545 # 1991 # 4609

SOLUTION:
8977