C1111233131211111211113313331333133313331333133313331333133313113313112121331   >>    C111123313121111121111331333133313331333133313331333133313331311331311212133   <<    C1111233131211111211113313331333133313331333133313331333133313113313112121333   >>      C1111233131211111211113313331333133313331333133313331333133313113313112121332   >>