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