C1111233133313231133133313231333133313113313113313331331121111122122321   >>    C111123313331323113313331323133313331311331311331333133112111112212232   <<    C1111233133313231133133313231333133313113313113313331331121111122122323   >>      C1111233133313231133133313231333133313113313113313331331121111122122322   >>