#include<fstream>
using namespace std;
int st[100],n, k;
double  cost[100];
ifstream cin("combinari.in");
ofstream cout("combinari.out");
void back(int p)
{ int pval; //valorile pentru nivelul p;
  for(pval=1;pval<=n;pval++)
    {st[p]=pval;
        if(p==n) 
        inmultire(p);
        else
         back(p+1);}}
int main()
{    int i;
float contor2;
     cin>>n;
     cin>>k;
     for(i=1;i<=n;i++)
       cin>>cost[i];
     back(1);
     cout<<contor2;
     cin.close();
     cout.close();
     return 0;}