C1111233133313231133133313331333133311221123121111331311211323321   >>    C111123313331323113313331333133313331122112312111133131121132332   <<    C1111233133313231133133313331333133311221123121111331311211323323   >>      C1111233133313231133133313331333133311221123121111331311211323322   >>