C111123313121111121111331333133313331333131221111113313233311211   >>    C11112331312111112111133133313331333133313122111111331323331121   <<    C111123313121111121111331333133313331333131221111113313233311213   >>      C111123313121111121111331333133313331333131221111113313233311212   >>