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This a exactly like the famous game "Hangman." The game is very simple, and it has 3 levels:

1. SIMPLE costs 15NP and receive 50NP for winning.
2. MEDIUM costs 30NP and receive 100NP for winning.
3. HARD costs 50NP and you receive 150NP when you win.

Each day may only receive a maximum of 1,500NP.