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: 2611 @ 6783 @ 8407 # 5813 @ 4138

SOLUTION: 16126

PROBLEM: 524 @ 1123 # 5900 # 4128 # 1486 # 9545

SOLUTION: -19412

PROBLEM: 6489 # 5248 @ 8693 @ 5325 # 8632 # 4445 @ 4155 # 6919

SOLUTION:
-582