#include <cstdio>
#include <cstdlib>
#include <iostream>
#include <string>
#include <cmath>
#include <algorithm>
#include <vector>
#include <queue>
#include <stack>

using namespace std;



int main(){
    long long n,a,sum;
    
    scanf("%lld",&n);
    
    a=(n+1)/2%1000007;
    sum=a+a*(n/2)+n/2;
    
    printf("%lld\n",sum%1000007);
    
    return 0;
}