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: 7542 @ 5447 # 1409 # 4760 # 6595

SOLUTION: 225

PROBLEM: 1709 # 2270 # 1077 # 9681

SOLUTION: -11319

PROBLEM: 7969 @ 3434 @ 9306 # 5638

SOLUTION:
15071