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#include <vector>
#include <fstream>
#include <bitset>
#include <queue>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n, k;
int fr[20];
int st[20];
void afis()
{
for (int i = 1; i <= k; i++)
fout << st[i] << " ";
fout << "\n";
}
void back(int top)
{
for(int i=st[top-1]+1; i<=n; i++)
{
st[top] = i;
if (top == k)
afis();
else
back(top + 1);
}
}
int main()
{
fin >> n >> k;
back(1);
return 0;
}