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#include <iostream>
#include <fstream>
using namespace std;
ifstream in("combinari.in");
ofstream out("combinari.out");
void afisare(int v[],int k)
{
for(int i=1;i<=k;i++)
out<<v[i]<<" "; out<<endl;
}
void bk(int j,int n,int k, int v[])
{
for(int i=v[j-1]+1;i<=n;i++)
{
v[j]=i;
if(j==k) afisare(v,k);
else bk(j+1,n,k,v);
}
}
int v[19]={0};
int main()
{
int n,k; in>>n>>k;
int j=1;
bk(j,n,k,v);
}