# include "bits/stdc++.h"
using namespace std;
using LL = long long;
using ULL = unsigned long long;
const double PI = acos(-1);
template<class T>constexpr T INF() { return ::std::numeric_limits<T>::max(); }
template<class T>constexpr T HINF() { return INF<T>() / 2; }
template <typename T_char>T_char TL(T_char cX) { return tolower(cX); };
template <typename T_char>T_char TU(T_char cX) { return toupper(cX); };
const int vy[] = { -1, -1, -1, 0, 1, 1, 1, 0 }, vx[] = { -1, 0, 1, 1, 1, 0, -1, -1 };
const int dx[4] = { 0,1,0,-1 }, dy[4] = { 1,0,-1,0 };
int popcnt(unsigned long long n) { int cnt = 0; for (int i = 0; i < 64; i++)if ((n >> i) & 1)cnt++; return cnt; }
int d_sum(LL n) { int ret = 0; while (n > 0) { ret += n % 10; n /= 10; }return ret; }
int d_cnt(LL n) { int ret = 0; while (n > 0) { ret++; n /= 10; }return ret; }
LL gcd(LL a, LL b) { if (b == 0)return a; return gcd(b, a%b); };
LL lcm(LL a, LL b) { LL g = gcd(a, b); return a / g*b; };
# define ALL(qpqpq)           (qpqpq).begin(),(qpqpq).end()
# define UNIQUE(wpwpw)        sort(ALL((wpwpw)));(wpwpw).erase(unique(ALL((wpwpw))),(wpwpw).end())
# define LOWER(epepe)         transform(ALL((epepe)),(epepe).begin(),TL<char>)
# define UPPER(rprpr)         transform(ALL((rprpr)),(rprpr).begin(),TU<char>)
# define FOR(i,tptpt,ypypy)   for(LL i=(tptpt);i<(ypypy);i++)
# define REP(i,upupu)         FOR(i,0,upupu)
# define INIT                 std::ios::sync_with_stdio(false);std::cin.tie(0)

//行列は二次元vectorを用いることにする
typedef vector<LL> vec;
typedef vector<vec> mat;

//A*Bの計算
mat mul(mat &A, mat&B, int M) {
	mat C((int)A.size(), vec(B[0].size()));
	for (int i = 0; i < (int)A.size(); i++) {
		for (int k = 0; k < (int)B.size(); k++) {
			for (int j = 0; j < (int)B[0].size(); j++) {
				C[i][j] = (C[i][j] + A[i][k] * B[k][j]) % M;
			}
		}
	}
	return C;
}

//A^nの計算
mat pow(mat A, LL n, int M) {
	mat B((int)A.size(), vec(A.size()));
	for (int i = 0; i < (int)A.size(); i++) {
		B[i][i] = 1;
	}
	while (n > 0) {
		if (n & 1)B = mul(B, A, M);
		A = mul(A, A, M);
		n >>= 1;
	}
	return B;
}

LL n;
const LL mod = 1e9 + 7;
int main() {
	cin >> n;
    mat A(2, vec(1));
    A[0][0] = 1, A[1][0]  = 1;
	mat B(2, vec(2));
	B[0][0] = 1, B[0][1] = 1;
	B[1][0] = 1, B[1][1] = 0;
	B = pow(B, n - 1, mod);
    A = mul(B, A, mod);
	cout << A[0][0] * A[1][0] % mod << endl;
}