C1111133313331323223313331333133313113313231333133313121133131121231   >>    C111113331333132322331333133313331311331323133313331312113313112123   <<    C1111133313331323223313331333133313113313231333133313121133131121233   >>      C1111133313331323223313331333133313113313231333133313121133131121232   >>