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#include <iostream>
#include <fstream>
using namespace std;
ifstream f("combinari.in");
ofstream g("combinari.out");
int den, ltk, v[20];
void afisare()
{
for(int i=1; i<=ltk; i++)
g << v[i] << " ";
g << "\n";
}
void backtrack(int x)
{
for(int i=v[x-1]+1; i<=den; i++)
{
v[x]=i;
if(x==ltk) afisare();
else backtrack(x+1);
}
}
int main()
{
f >> den >> ltk;
backtrack(1);
f.close();
g.close();
return 0;
}