#include <bits/stdc++.h>
using namespace std;
int n,st[17];
void Back(int k,int start){
    if(k>=2){
        for(int i=1;i<k;++i)
            printf("%d ",st[i]);
        printf("\n");
    }
    for(int i=start;i<=n;++i){
        st[k]=i;
        Back(k+1,i+1);
    }
}
int main(){
    freopen("submultimi.in","r",stdin);
    freopen("submultimi.out","w",stdout);
    scanf("%d",&n);
    Back(1,1);
}