C1111233131211111211113313331333133313331323331333132233313233311   >>    C111123313121111121111331333133313331333132333133313223331323331   <<    C1111233131211111211113313331333133313331323331333132233313233313   >>      C1111233131211111211113313331333133313331323331333132233313233312   >>