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#include <iostream>
#include <fstream>
using namespace std;
ifstream f("combinari.in");
ofstream g("combinari.out");
int n,k,per[50],y[50];
void afisare()
{
int i;
for(int i=1;i<=n;i=i+1){
g<<per[i]<<" ";
}
g<<"\n";
}
void bktr(int pas)
{
if(pas==k){
afisare();
}
else{
for(int i=1;i<=n;i=i+1){
if(!y[i]){
per[pas]=i;
y[i]=1;
bktr(pas+1);
y[i]=0;
}
}
}
}
int main()
{
f>>n>>k;
bktr(1);
return 0;
}