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#include <bits/stdc++.h>
using namespace std;
int uz[20],n,k;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int back(int l,int u)
{
int i;
if(l==k)
{for(int i=1;i<=n;i++)
if(uz[i])
fout<<i<<' ';
fout<<endl;}
else
{
for(i=u;i<=n;i++)
if(!uz[i])
{
uz[i]=1;
back(l+1,u+1);
uz[i]=0;
}
}
}
int main()
{
fin>>n;
fin>>k;
back(0,1);
return 0;
}