#include <bits/stdc++.h>
#include <atcoder/all>
using namespace atcoder;
#define rep(i, n) for (int i = 0; i < (n); ++i)

using namespace std;
using ll = long long;
using mint = modint1000000007;

int main() {
    ll n;
    cin >> n;
    
    n -= 4;
    ll k = n%6;
    n /= 6;
    
    mint ans = mint(3*n+k)*(n+1);
    if (!k) ans += 1;
    cout << ans.val() << '\n';
    
    return 0;
}