C111123313121111121111331333133313331333133313331333133313331312113313231121   >>    C11112331312111112111133133313331333133313331333133313331333131211331323112   <<    C111123313121111121111331333133313331333133313331333133313331312113313231123   >>      C111123313121111121111331333133313331333133313331333133313331312113313231122   >>