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#include <iostream>
#include <fstream>
using namespace std;
ifstream f("combinari.in");
ofstream g("combinari.out");
int x[20];
int main()
{
int n,k,i,j;
f>>n>>k;
for(i=1;i<=k;i++)
{
x[i]=i;
g<<x[i]<<' ';
}
i--;
x[i+1]=i+2;
g<<'\n';
while(x[0]==0)
{
if(x[i]<x[i+1]-1)
x[i]++;
else
{
i--;
x[i]++;
}
for(j=1;j<=k;j++)
g<<x[j]<<' ';
g<<'\n';
}
return 0;
}