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: 7065 # 7713 # 7473 # 664 # 8030

SOLUTION: -16815

PROBLEM: 6055 # 1440 # 3272 # 5643 @ 150 @ 7658 # 8655 @ 8463 # 8156

SOLUTION: -4840

PROBLEM: 3563 # 6479 @ 5034 @ 103

SOLUTION:
2221