#include using namespace std; using ll = long long; const ll MOD = 1000000007; typedef vector vec; typedef vector mat; mat mul(mat& A, mat& B) { mat C(A.size(), vec(B[0].size(), 0)); for (int i = 0; i < A.size(); i++) { for (int k = 0; k < B.size(); k++) { for (int j = 0; j < B[0].size(); j++) { (C[i][j] += A[i][k] * B[k][j] % MOD) %= MOD; } } } return C; } mat pow(mat A, ll n) { mat B(A.size(), vec(A.size(), 0)); for (int i = 0; i < A.size(); i++) { B[i][i] = 1; } while (n > 0) { if (n & 1) B = mul(B, A); A = mul(A, A); n >>= 1; } return B; } int main() { cin.tie(0); ios::sync_with_stdio(false); mat A = {{0, 1}, {1, 1}}; ll n; cin >> n; mat C = pow(A, n); mat B = {{0}, {1}}; ll ans = mul(C, B)[0][0]; C = mul(C, A); ans = ans * mul(C, B)[0][0] % MOD; cout << ans << endl; return 0; }