Problem Statement

Shadow IT Report Given a sanctioned-app catalog and discovered app names, report each discovered app that is not sanctioned. Matching is case-insensitive, and each shadow app is reported once. Input Format The first line contains `M`. The next `M` lines contain sanctioned app names. The following line contains `N`, followed by `N` discovered app names. A name occupies its complete line and can contain spaces. Output Format Print each shadow app lowercased, once, in ascending ASCII order. Print `NONE` if none exist. Constraints `1 <= M, N <= 100000`; each name has 1 to 64 ASCII letters, digits, spaces, dots, or hyphens, with no leading or trailing spaces. Notes Only capitalization is ignored for matching. Output is sorted after names are lowercased.