#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";
}
}
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