import java.io.*;
import java.util.*;
import java.util.function.*;
import java.util.stream.*;

public class Main {
    static final int MOD = 1000000007;
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        int n = sc.nextInt();
        if (n < 4) {
            System.out.println(0);
            return;
        }
        int[][][][] dp = new int[n][2][2][2];
        for (int i = 0; i < 2; i++) {
            for  (int j = 0; j < 2; j++) {
                for (int k = 0; k < 2; k++) {
                    dp[2][i][j][k] = 1;
                }
            }
        }
        long ans = 0;
        for (int i = 3; i < n; i++) {
            for (int a = 0; a < 2; a++) {
                for (int b = 0; b < 2; b++) {
                    for (int c = 0; c < 2; c++) {
                        for (int d = 0; d < 2; d++) {
                            if (a == 1 && b == 0 && c == 1 && d == 0) {
                                ans += dp[i - 1][a][b][c] * pow(2, n - i - 1) % MOD;
                                ans %= MOD;
                            } else {
                                dp[i][b][c][d] += dp[i - 1][a][b][c];
                                dp[i][b][c][d] %= MOD;
                            }
                        }
                    }
                }
            }
        }
        System.out.println(ans);
    }
    
    static long pow(long x, int p) {
        if (p == 0) {
            return 1;
        } else if (p % 2 == 0) {
            return pow(x * x % MOD, p / 2);
        } else {
            return pow(x, p - 1) * x % MOD;
        }
    }
}
class Scanner {
    BufferedReader br;
    StringTokenizer st = new StringTokenizer("");
    StringBuilder sb = new StringBuilder();
    
    public Scanner() {
        try {
            br = new BufferedReader(new InputStreamReader(System.in));
        } catch (Exception e) {
            
        }
    }
    
    public int nextInt() {
        return Integer.parseInt(next());
    }
    
    public long nextLong() {
        return Long.parseLong(next());
    }
    
    public double nextDouble() {
        return Double.parseDouble(next());
    }
    
    public String next() {
        try {
            while (!st.hasMoreTokens()) {
                st = new StringTokenizer(br.readLine());
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            return st.nextToken();
        }
    }
    
}