#include <cstdio>
#include <cstring>
#include <iostream>
#include <string>
#include <cmath>
#include <bitset>
#include <vector>
#include <map>
#include <set>
#include <queue>
#include <deque>
#include <algorithm>
using namespace std;
typedef long long int ll;
typedef pair<int, int> P;
const ll MOD=1e9+7;

ll powmod(ll a, ll k){
    ll ap=a, ans=1;
    while(k>0){
        if(k%2==1){
            ans*=ap;
            ans%=MOD;
        }
        ap=ap*ap;
        ap%=MOD;
        k/=2;
    }
    return ans;
}

ll inv(ll a){
	return powmod(a, MOD-2);
}

int main()
{
	int n;
	cin>>n;
	ll f[100001];
	f[0]=1;
	for(ll i=1; i<=n; i++){
		f[i]=f[i-1]*i%MOD;
	}
	ll invf[100001];
	invf[n]=inv(f[n]);
	for(ll i=n-1; i>=0; i--){
		invf[i]=invf[i+1]*(i+1)%MOD;
	}
	ll ans=0;
	for(ll i=1; i<=n; i++){
		ans+=f[n]*invf[i]%MOD*invf[n-i]%MOD*powmod(i, (ll)(n-i))%MOD;
		ans%=MOD;
	}
	cout<<ans<<endl;
	return 0;
}