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#include <iostream>
#include <fstream>
ifstream f("combinari.in");
ofstream g("combinari.out");
using namespace std;
int v[1000000];
void bkt(int p, int n, int k)
{
for(int i=v[p-1]+1;i<=n;i++)
{
v[p]=i;
if(p==k)
{
for(int j=1;j<=p;j++)
{
g << v[j] << " ";
}
g << "\n";
}
else bkt(p+1,n,k);
}
}
int main()
{
int n,k;
f >> n >> k;
int p=1;
bkt(p,n,k);
return 0;
}