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#include <bits/stdc++.h>
using namespace std;
ifstream f("combinari.in");
ofstream g("combinari.out");
int n,K,fv[51],sol[51];
void afisare()
{
int i;
for(i=1;i<=K;i++)
g<<sol[i]<<" ";
g<<'\n';
}
void beck(int k)
{
int i;
if(k==K+1)
{
afisare();
}
else
{
for(i=sol[k-1]+1;i<=n;i++)
{
sol[k]=i;
fv[i]++;
if(fv[i]==1)beck(k+1);
fv[i]--;
}
}
}
int main()
{
f>>n>>K;
beck(1);
return 0;
}