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#include <iostream>
#include <fstream>
using namespace std;
ifstream f("combinari.in");
ofstream g("combinari.out");
int n,k,x[18];
void scrie(int n)
{
int i;
for(i=1;i<=n;i++)
g<<x[i]<<" ";
g<<'\n';
}
void back(int i)
{
int j;
for(j=x[i-1]+1;j<=n;j++)
{
x[i]=j;
if(i<k)
back(i+1);
else
scrie(k);
}
}
int main()
{
x[0]=0;
f>>n>>k;
back(1);
return 0;
}