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: 815 @ 7862 # 6166

SOLUTION: 2511

PROBLEM: 4324 # 426 # 9171 # 980 @ 9454 @ 9720 # 7367 # 9266 # 1237

SOLUTION: -4949

PROBLEM: 8303 # 8018 # 2622 @ 1196 # 918 # 8961 @ 7518 @ 5265

SOLUTION:
1763