C111123313121111121111331333133313331323132333132313331312111112233221   >>    C11112331312111112111133133313331333132313233313231333131211111223322   <<    C111123313121111121111331333133313331323132333132313331312111112233223   >>      C111123313121111121111331333133313331323132333132313331312111112233222   >>