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#include <iostream>
#include<fstream>
#include<fstream>
using namespace std;
int n,p;
int stiva[100];
ifstream in("combinari.in");
ofstream out("combinari.out");
void comb(int here,int len)
{
if(len==p)
{
for(int i=0; i<len; i++)
{
out<<stiva[i]<<" ";
}
out<<endl;
return;
}
for(int i=here+1; i<=n; i++)
{
stiva[len]=i;
comb(i,len+1);
}
}
int main()
{
in>>n>>p;
comb(0,0);
return 0;
}