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#include <fstream>
using namespace std;
ifstream in("combinari.in");
ofstream out("combinari.out");
bool ver[20];
int a[20],n,k;
void bck(int nr,int b)
{
if(nr==k)
{
for(int i=1;i<=k;++i)
out<<a[i]<<' ';
out<<'\n';
return;
}
for(int i=b;i<=n;++i)
{
if(ver[i]==false)
{
ver[i]=true;
a[nr+1]=i;
bck(nr+1,i+1);
ver[i]=false;
}
}
return;
}
int main()
{
in>>n>>k;
bck(0,1);
return 0;
}