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: 7806 # 6020 # 4616 @ 3594 # 6312 # 5362 # 4403 @ 3666

SOLUTION: -11647

PROBLEM: 4101 @ 2536 # 502

SOLUTION: 6135

PROBLEM: 4166 # 2808 # 1558 @ 1661 # 2128 # 19

SOLUTION:
-686