C11112331312111112111133132313331333133313232313331322333131121   >>    C1111233131211111211113313231333133313331323231333132233313112   <<    C11112331312111112111133132313331333133313232313331322333131123   >>      C11112331312111112111133132313331333133313232313331322333131122   >>