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#include <iostream>
#include <fstream>
#define DIM 20
using namespace std;
ifstream f("submultimi.in");
ofstream g("submultimi.out");
bool taken[DIM];
int n, v[DIM];
void afisare(int l, int v[]){
for(int i=1; i<=l; i++)
g<<v[i]<<" ";
g<<"\n";
}
bool validare(int l, int v[]){
for(int i=1; i<l; i++)
if(v[i] > v[i+1])
return 0;
return 1;
}
void bkt(int k){
for(int i=1; i<=n; i++){
if(taken[i] == 0){
v[k]=i;
taken[i]=1;
if(validare(k,v)){
afisare(k,v);
bkt(k+1);
}
taken[i]=0;
}
}
}
int main()
{
f>>n;
bkt(1);
}