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#include <fstream>
using namespace std;
ifstream in("permutari.in");
ofstream out("permutari.out");
int sol[1001],n,k;
void afisare()
{
int i;
for(i=1; i<=k; i++) out<<sol[i]<<" ";
out<<"\n";
}
void bkt (int p)
{
if(p-1==k) afisare();
int i;
for(i=sol[p-1]+1;i<=n-k+p;i++) {
sol[p]=i;
afisare();
bkt(p+1);
}
}
int main()
{
in>>n;
in>>k;
bkt(1);
return 0;
}