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#include <bits/stdc++.h>
using namespace std;
int n, m, v[21];
ifstream fin("combinari.in");
ofstream fout("combinari.out");
void afisare()
{
int i;
for (i = 1; i <= m; i++)
fout << v[i] << " ";
fout << '\n';
}
void bkt(int k)
{
int i;
for (i = v[k - 1] + 1; i <= n; i++)
{
v[k] = i;
if (k == m)
afisare();
else
bkt(k + 1);
}
}
int main()
{
fin >> n >> m;
bkt(1);
return 0;
}