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#include <fstream>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n,k,f[18],v[19];
void print()
{
for(int j=1;j<=v[0];j++)
fout<<v[j]<<' ';
fout<<'\n';
}
void comb(int a,int b,int o)
{
if(b==1)
{
v[0]++;
for(int i=o;i<=a;i++)
{
v[v[0]]=i;
print();
}
v[0]--;
}
else
for(int i=o;i<=a;i++)
{
v[0]++;
v[v[0]]=i;
comb(a,b-1,i+1);
}
v[0]--;
}
int main()
{
fin>>n>>k;
comb(n,k,1);
return 0;
}