#define _USE_MATH_DEFINES
#include <cstdio>
#include <iostream>
#include <sstream>
#include <fstream>
#include <iomanip>
#include <algorithm>
#include <cmath>
#include <complex>
#include <string>
#include <vector>
#include <list>
#include <queue>
#include <stack>
#include <set>
#include <map>
#include <bitset>
#include <numeric>
#include <limits>
#include <climits>
#include <cfloat>
#include <functional>
#include <iterator>
using namespace std;

template <class T>
vector<vector<T> > matrixProduct(
    const vector<vector<T> >& x, const vector<vector<T> >& y, int mod)
{
    int a = x.size();
    int b = x[0].size();
    int c = y[0].size();
    vector<vector<T> > z(a, vector<T>(c, 0));
    for(int i=0; i<a; ++i){
        for(int j=0; j<c; ++j){
            for(int k=0; k<b; ++k){
                z[i][j] += x[i][k] * y[k][j];
                z[i][j] %= mod;
            }
        }
    }
    return z;
}

template <class T>
vector<vector<T> > matrixPower(const vector<vector<T> >& x, long long k, int mod)
{
    int n = x.size();
    vector<vector<T> > y(n, vector<T>(n, 0));
    for(int i=0; i<n; ++i)
        y[i][i] = 1; // 積の単位元

    vector<vector<T> > z = x;
    while(k > 0){
        if(k & 1)
            y = matrixProduct(y, z, mod);
        z = matrixProduct(z, z, mod);
        k >>= 1;
    }
    return y;
}

const int MOD = 1000000007;

int main()
{
    long long n;
    cin >> n;

    vector<vector<long long> > mat = {{1,1}, {1,0}};
    auto a = matrixPower(mat, n, MOD*2+2);
    auto b = matrixPower(mat, a[0][1], MOD);
    cout << b[0][1] << endl;

    return 0;
}