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23 changes: 23 additions & 0 deletions Seol-JY/202510/20 BOJ G5 Ezreal 여눈부터 가네 ㅈㅈ.md‎
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```java
import java.io.*;

public class Main {
static final int MOD = 1_000_000_007;

public static void main(String[] args) throws IOException {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
int N = Integer.parseInt(br.readLine());

long[][] dp = new long[N + 1][3];
dp[1][2] = 1;

for (int i = 2; i <= N; i++) {
dp[i][0] = (dp[i-1][1] + dp[i-1][2]) % MOD;
dp[i][1] = (dp[i-1][0] + dp[i-1][2]) % MOD;
dp[i][2] = (dp[i-1][0] + dp[i-1][1]) % MOD;
}

System.out.println(dp[N][0]);
}
}
```