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#include <bits/stdc++.h>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n,sol[40],use[40],m;
void bkt(int k);
void prelucreaza();
int main()
{
fin>>n>>m;
bkt(1);
return 0;
}
void bkt(int k)
{
int i;
if(k>m)
prelucreaza();
else
for(i=sol[k-1]+1;i<=n;++i)
if(use[i]==0)
{
use[i]=1;
sol[k]=i;
bkt(k+1);
use[i]=0;
}
}
void prelucreaza()
{
int j;
for(j=1;j<=m;++j)
fout<<sol[j]<<' ';
fout<<'\n';
}