C1111233131211111211113313331333133313331333133313331333133313331323132211311   >>    C111123313121111121111331333133313331333133313331333133313331333132313221131   <<    C1111233131211111211113313331333133313331333133313331333133313331323132211313   >>      C1111233131211111211113313331333133313331333133313331333133313331323132211312   >>