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#include<iostream>
#include<fstream>
using namespace std;
fstream fin("combinari.in",ios::in),fout("combinari.out",ios::out);
int x[100],ap[100],a[100],n,m;
void scrie()
{
for(int i=1;i<=m;i++)
{
fout<<x[i]<<" ";
}
fout<<"\n";
}
void back(int k)
{
if(k>m)
{
scrie();
return ;
}
for(int i=x[k-1]+1;i<=n;i++)
{
if(ap[i]==0)
{
ap[i]=1;
x[k]=i;
back(k+1);
ap[i]=0;
}
}
}
int main()
{
fin>>n>>m;
back(1);
}