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#include <iostream>
#include <cstdio>
#define N 20
using namespace std;
int n, k, viz[N], sol[N];
void afisare()
{
for(int i=1;i<=k;i++)
printf("%d ", sol[i]);
printf("\n");
}
void bt(int poz)
{
if(poz==k+1)
{
afisare();
return;
}
for(int v=sol[poz-1]+1;v<=n;v++)
if(!viz[v])
{
viz[v]=1;
sol[poz]=v;
bt(poz+1);
viz[v]=0;
}
}
int main()
{
freopen("combinari.in", "r", stdin);
freopen("combinari.out", "w", stdout);
scanf("%d %d\n", &n, &k);
bt(1);
return 0;
}