C1111233133313231133133313231333133313113313113313331331121111331323321   >>    C111123313331323113313331323133313331311331311331333133112111133132332   <<    C1111233133313231133133313231333133313113313113313331331121111331323323   >>      C1111233133313231133133313231333133313113313113313331331121111331323322   >>