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#include<iostream>
#include<algorithm>
#include<fstream>
using namespace std;
int n, m;
vector<int> v;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
void afis()
{
for(int i = 0; i < v.size(); i++)
fout << v[i] << " ";
fout << "\n";
}
void back(int k)
{
if(v.size() == m)
{
afis();
return ;
}
if(k - 1 > n)
{
return ;
}
v.push_back(k);
back(k + 1);
v.pop_back();
back(k + 1);
}
int main()
{
fin >> n >> m;
n--;
back(1);
}