#include <iostream>

#define FORR(i,b,e) for(int i=(b);i<(int)(e);++i)
#define FOR(i,e) FORR(i,0,e)
#define dump(var) cerr << #var ": " << var << "\n"
#define dumpc(con) for(auto& e: con) cerr << e << " "; cerr<<"\n"

typedef long long ll;
typedef unsigned long long ull;

const ull MODD = 1000007;

using namespace std;


int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);

    ull N;
    cin >> N;
    ull p = N/2, q = N-N/2;
    cout << ((p%MODD)*(q%MODD) + N)%MODD << endl;
    return 0;
}