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#include <iostream>
#include <fstream>
using namespace std;
ifstream f("combinari.in");
ofstream g("combinari.out");
int N,x[100],K;
void afisare (int k){
for(int i = 1; i <= k; i++){
g<<x[i]<<" ";
}
g<<"\n";
}
bool solutie ( int k ){
return ( k == K );
}
void back(int k){
int i;
for(i=x[k-1]+1; i<=N; i++){
x[k]=i;
if(solutie(k))
afisare(k);
else
back(k+1);
}
}
int main()
{
f>>N>>K;
back(1);
return 0;
}