#include<iostream>
using namespace std;
void print(const int A[], const int B[], int Bn)
{
    for (int i = 0; i != Bn; ++i)
        cout << A[*(B+i)];
}

bool fun(int B[], int Bn, int An)//处理进位
{
    int x = Bn-1;
    while(B[x] > x+An-Bn)
    {
        if(x == 0) return false;
        B[x-1] += 1;
        --x;
    }
    while(x != Bn-1)
    {
        B[x+1] = B[x]+1;
        ++x;
    }
    return true;
}

void C(const int A[],int An, int Bn)//C(An,Bn),数组A[]是元素的集合
{
    if (Bn == 0 || Bn > An) //C(An,Bn) 0 < Bn <= An
    {
        cerr << "error";
        return;
    }
    int *B = new int[Bn];
    for (int i = 0; i != Bn; ++i)
        B[i] = i;
    int j = 0;
    while(fun(B,Bn,An))
    {
        print(A, B, Bn);
        cout << ',';
        if (j++ == 5)
        {
            cout << endl;
            j= 0;
        }
        ++B[Bn-1];
    }
    delete []B;
}
int main()
{
    int A[] = {1,2,3,4,5,6,7};
    int n;
    while(cin >> n)
    {
        system("cls");
        C(A,sizeof(A)/sizeof(int),n);
    }
    return 0;
}