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#include <bits/stdc++.h>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n,k,viz[20],s[20];
void backt(int i)
{
if(i>k)
{
for(int j=1;j<=k;j++)
fout<<s[j]<<" ";
fout<<"\n";
}
else for(int j=s[i-1]+1;j<=n;j++)
if(!viz[j])
{
s[i]=j;
viz[j]=1;
backt(i+1);
viz[j]=0;
}
}
int main()
{
fin>>n>>k;
backt(1);
return 0;
}