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