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#include <iostream>
#include <fstream>
using namespace std;
ifstream f("combinari.in");
ofstream g("combinari.out");
int n,nr,v[10000];
void afisare()
{
for(int i=1;i<=nr;i++)
g<<v[i]<<" ";
g<<"\n";
}
void backtracking()
{
int i;
for(i=1;i<=nr;i++)
v[i]=i;
afisare();
i=nr;
while(i!=0)
{
v[i]++;
if(v[i]>n)
{
i--;
}
else
{
if(i==nr)
afisare();
else
{
i++;
v[i]=v[i-1];
}
}
}
}
int main()
{
f>>n>>nr;
backtracking();
return 0;
}