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#include <bits/stdc++.h>
using namespace std;
ifstream f("combinari.in");
ofstream g("combinari.out");
int a[20],b[20];
void bkt(int k,int len, int maxx)
{
if(k-1==maxx)
{
for(int i=1;i<=maxx;i++)
g<<a[i]<<" ";
g<<"\n";
}
else
{
for(int i=1;i<=len;i++)
{
if(!b[i] && a[k-1] < i)
{
a[k]=i;
b[i]=1;
bkt(k+1,len,maxx);
b[i]=0;
}
}
}
}
int main()
{
int n,k;
f>>n>>k;
bkt(1,n,k);
return 0;
}