#include <iostream>

using namespace std;

int main()
{
    int N = 7;
    for(int i = 0; i < N; ++i)
    {
        for(int j = 0; j < N; ++j)
            cout << (((j >= i && j < N-i) || (j <= i && j >= N-i-1)) ? "* " : "  ");
        cout << "\n";
    }
}