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: 3935 # 7500 # 205 # 7262 # 5754 @ 116 # 8451 # 9591

SOLUTION: -34712

PROBLEM: 3074 @ 9793 # 6587 @ 1399

SOLUTION: 7679

PROBLEM: 969 # 3613 @ 6662

SOLUTION:
4018