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#include <bits/stdc++.h>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n,k,curent,sol[20],use[20];
void bkt(int m)
{
if (m>k)
{
for (int i=1;i<m;i++)
fout<<sol[i]<<" ";
fout<<endl;
use[sol[m]]=0;
}
else for (int i=sol[m-1]+1;i<=n;i++)
if (use[i]==0)
{
use[i]=1;
sol[m]=i;
bkt(m+1);
use[i]=0;
}
}
int main()
{
fin>>n>>k;
bkt(1);
return 0;
}