#include <fstream>

std::ifstream f("submultimi.in");
std::ofstream g("submultimi.out");

int n,a[20];
bool fr[20];

void printSol(int k){
    
    for(int i = 1;i <= k;++i)
        g << a[i] << ' ';
    
    g << '\n';
}

void back(int k){
    
    for(int i = 1;i <= n;++i){
        
        a[k] = i;
        
        if(!fr[a[k]] && (k == 1 || a[k] > a[k - 1])){
            
            fr[a[k]] = 1;
            
            printSol(k);
            
            if(k < n)
                back(k + 1);
            
            fr[a[k]] = 0;
        }
    }
}

int main(){
    
    f >> n;
    
    back(1);
    
    return 0;
}