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#include <iostream>
#include <fstream>
using namespace std;
int a[1001],i,x,n,j,k,b[1001],l,t,nr;
ifstream f("submultimi.in");
ofstream g("submultimi.out");
int main()
{
f>>n>>k;
for(i=1;i<=n;i++)a[i]=i;
for(i=1;i<(1<<n);i++)
{
x=i;nr=0;l=0;
for(j=1;j<=n;j++)
{
if(x%2==1){b[++l]=a[j];nr++;}
x=x/2;
}
if(nr==k){
for(t=1;t<=k;t++)g<<b[t]<<" ";
g<<'\n';
}
}
return 0;
}