In a gaming conference attended by 80 people, 35 plays Valorant, 20 plays DOTA. 15 plays Genshin Impact. 5 plays both Valorant and Genshin Impact, 10 plays both Valorant and DOTA, 7 plays DOTA and Genshin Impact, and 4 plays all 3 games. Find the number of people who plays at least one of the games stated.

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