#include <iostream>
#include <fstream>
#include <cstdio>
#include <cmath>
#include <vector>
#include <cstring>
#include <string>
#include <set>
#include <map>
#include <stack>
#include <queue>
#include <algorithm>
using namespace std;

#define REP(i,n) for(int i=0; i<n; ++i)
#define FOR(i,a,b) for(int i=a; i<=b; ++i)
#define FORR(i,a,b) for (int i=a; i>=b; --i)
#define ALL(c) (c).begin(), (c).end()

typedef long long ll;
typedef vector<int> VI;
typedef vector<ll> VL;
typedef vector<VI> VVI;
typedef pair<int,int> P;
typedef pair<ll,ll> PL;

vector<VL> mulmat(vector<VL> A, vector<VL> B, ll mod){
	int n = A.size();
	vector<VL> C(n, VL(n));
	REP(i,n) REP(j,n) REP(k,n) C[i][j] = (C[i][j] + A[i][k] * B[k][j]) % mod;
	return C;
}

vector<VL> powmat(vector<VL> A, ll x, ll mod){
	int n = A.size();
	vector<VL> B(n, VL(n));
	REP(i,n) B[i][i] = 1;
	while (x){
		if (x & 1) B = mulmat(B, A, mod);
		A = mulmat(A, A, mod);
		x >>= 1;
	}
	return B;
}

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

	vector<VL> A(2,VL(2,1));
	A[1][1] = 0;

	A = powmat(A, n, 2e9 + 17);

	ll fi = A[1][0];

	// cout << fi<< endl;
	A[0][0] = A[0][1] = A[1][0] = 1;
	A[1][1] = 0;

	A = powmat(A, fi, 1e9 + 7);

	cout << A[1][0] << endl;
    return 0;
}