C111123313121111121111331323133313331333132333133313233311213311   >>    C11112331312111112111133132313331333133313233313331323331121331   <<    C111123313121111121111331323133313331333132333133313233311213313   >>      C111123313121111121111331323133313331333132333133313233311213312   >>