C111123313121111121111331333133313331323132333131133133313331333132211211   >>    C11112331312111112111133133313331333132313233313113313331333133313221121   <<    C111123313121111121111331333133313331323132333131133133313331333132211213   >>      C111123313121111121111331333133313331323132333131133133313331333132211212   >>