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