C11112331312111112111133133313331333133313122111133133313113313331323213311   >>    C1111233131211111211113313331333133313331312211113313331311331333132321331   <<    C11112331312111112111133133313331333133313122111133133313113313331323213313   >>      C11112331312111112111133133313331333133313122111133133313113313331323213312   >>