#include <stdio.h>
int main() {
int num = 0;
while (scanf("%d", &num) != EOF)
{
for (int i = 0; i < num; i++)
{
for (int j = 0; j < num; j++)
{
if (j == i || j == num - i-1)
{
printf("*");
}
else
{
printf(" ");
}
}
printf("\n");
}
}
return 0;
}

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