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#include <iostream>
#include <fstream>
#include <vector>
#include <deque>
#define nmx 20
using namespace std;
ifstream f ("combinari.in");
ofstream g ("combinari.out");
int n,k,m,a,b,s,v[nmx],vf[nmx],ct;
void afis()
{
for (int i=1; i<=k; i++)
g<<v[i]<<' ';
g<<'\n';
}
void co (int poz,int st)
{
if (poz==k+1)
{
afis();
return;
}
for (int i=st; i<=n; i++)
{
if (!vf[i])
{
vf[i]=1;
v[poz]=i;
co(poz+1,i+1);
vf[i]=0;
}
}
}
int main()
{
f>>n>>k;
co(1,1);
}