#include<cstdio>
using namespace std;
int i, n, sol[101], lg;
inline void back(){
    int i;
    for (i=1;i<=lg;i++) printf("%d ", sol[i]);
    if (lg>0) printf("\n");
    for (i=sol[lg]+1;i<=n;i++) {
        sol[++lg]=i;
        back();
        sol[lg]=0; lg--;
    }
}
int main(){
    freopen("submultimi.in","r",stdin);
    freopen("submultimi.out","w",stdout);
    scanf("%d", &n); lg=0; back();
    return 0;
}