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#include <bits/stdc++.h>
using namespace std;
ifstream fin ("combinari.in);
ofstream fout ("combinari.out");
void usain_bolt()
{
ios::sync_with_stdio(false);
fin.tie(0);
}
const int N = 20;
int n, m, ans[N];
void solve(int k)
{
for(int i = ans[k - 1] + 1; i <= n; ++i) {
ans[k] = i;
if(k < m) solve(k + 1);
else {
for(int j = 1; j <= m; ++j) fout << ans[j] << " ";
fout << "\n";
}
}
}
int main()
{
usain_bolt();
fin >> n >> m;
solve(1);
return 0;
}