C11112331312111112111133132313331333133313233313331322113232311   >>    C1111233131211111211113313231333133313331323331333132211323231   <<    C11112331312111112111133132313331333133313233313331322113232313   >>      C11112331312111112111133132313331333133313233313331322113232312   >>