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: 3556 # 1722 @ 9362 # 7616 # 7893

SOLUTION: -4313

PROBLEM: 2367 @ 4877 @ 8467 @ 5488 # 987 # 8899

SOLUTION: 11313

PROBLEM: 4742 # 7610 @ 8495 @ 1114 @ 6107 # 1203

SOLUTION:
11645