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#include <bits/stdc++.h>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int v[20];
int n,k;
void bkt(int cnt)
{
for (int i = v[cnt - 1] + 1;i <= n;i++)
{
v[cnt] = i;
if (cnt == k)
{
for (int j = 1;j <= k;j++)
fout << v[j] << " ";
fout << '\n';
}
else
bkt(cnt + 1);
}
}
int main()
{
fin >> n >> k;
bkt(1);
return 0;
}