#include <iostream>
#include <vector>
#include <cmath>

#define LL long long
#define MOD 1000000007

using namespace std;


int main(){
    LL n;
    cin>>n;

    n = n*4;

    LL free_places_for_ducks = n/2 - 4;
    LL free_places = n-4;

    // ( Comb fp -> fpfd ) - (fpfd -1)!

    LL up=1;


    for(int i=1;i<=free_places;i++)
    {   
        up*=i;
        up%=MOD;
    }


    LL down=1,down2=1;

    for(int i=1;i<=free_places_for_ducks;i++)
    {   
        down*=i;
        down%=MOD;
    }

    for(int i=1;i<=free_places - free_places_for_ducks;i++)
    {   
        down2*=i;
        down2%=MOD;
    }

    LL comb = (up/(down*down2)%MOD) % MOD * (n/4);

    LL fact=0,res;

    if(free_places_for_ducks > 0)
        fact++;

    for(int i=1;i<free_places_for_ducks;i++)
    {   
        fact*=i;
        fact%=MOD;
    }

    res = comb - fact;

    cout<<res<<'\n';

    return 0;
}