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#include <bits/stdc++.h>
using namespace std;
ifstream in("combinari.in");
ofstream out("combinari.out");
int a[20],n,k;
bool viz[20];
void bkt( int x, int cnt)
{
a[cnt] = x;
if( cnt == k )
{
for(int i=1; i<=k; i++)
out << a[i] << ' ';
out << '\n';
return;
}
for(int i=x; i<=n; i++)
if( !viz[i] )
{
viz[i] = 1;
bkt(i,cnt+1);
viz[i] = 0;
}
}
int main()
{
ios::sync_with_stdio(0);
in >> n >> k;
for(int i=1; i<=n; i++)
{
viz[i] = 1;
bkt(i,1);
viz[i] = 0;
}
return 0;
}