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#include <bits/stdc++.h>
using namespace std;
int a[20], n, k;
ifstream f("combinari.in");
ofstream g("combinari.out");
void Afis()
{
int i;
for(i = 1; i <= k; i++)
g << a[i] << " ";
g << "\n";
}
void Gen(int top)
{
if(top == k + 1) Afis();
else
for(int i = a[top-1]+1; i <= n; i++)
{
a[top] = i;
Gen(top + 1);
}
}
int main()
{
f >> n >> k;
Gen(1);
return 0;
}