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#include <fstream>
using namespace std;
ifstream f("combinari.in");
ofstream g("combinari.out");
int ras[20],frq[20],k,q,n;
void afisare ()
{int i;
for (i=1;i<=k;i++)
g<<ras[i]<<" ";
g<<'\n';
}
void bak(int q)
{int i;
if (q-1==k) afisare();
else
{for (i=1;i<=n;i++)
if (ras[q-1]<i && !frq[i])
{ras[q]=i; frq[i]=1;
bak(q+1);
frq[i]=0;
}
}
}
int main()
{f>>n>>k;
bak(1);
return 0;
}