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#include <fstream>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
struct coords{short int i,j;};
int n,v[21],k;
bool fr[21];
void bkt(int i,int nr){
if(i>k)
return;
while(nr<=n){
if(fr[nr]==0)
{
v[i]=nr;
fr[nr]=1;
if(i>=k)
{
for(int c=1;c<=k;c++)
fout<<v[c]<<" ";
fout<<'\n';
fr[nr]=0;
}
bkt(i+1,nr+1);
fr[nr]=0;
}
nr++;
}
}
int main()
{
fin>>n>>k;
bkt(1,1);
return 0;
}