C111123313121111121111331323133313331333132333133313113313232113311   >>    C11112331312111112111133132313331333133313233313331311331323211331   <<    C111123313121111121111331323133313331333132333133313113313232113313   >>      C111123313121111121111331323133313331333132333133313113313232113312   >>