C312312111112111113121333133313331333133313331333211232313233313331323211333131   >>    C31231211111211111312133313331333133313331333133321123231323331333132321133313   <<    C312312111112111113121333133313331333133313331333211232313233313331323211333133   >>      C312312111112111113121333133313331333133313331333211232313233313331323211333132   >>