#include <iostream>
using namespace std;

int main() {
int i,j,n;
//cout << "請輸入數字:";
cin >> n;
for (i=1;i<=n;i++){
for (j=1;j<=i;j++)
cout << "*";
cout << endl;
}
for (i=n-1;i>=1;i--){
for (j=1;j<=i;j++)
cout << "*";
cout << endl;
}
return 0;
}

n = int(input())

for i in range(1, n+1):
for j in range(1, i+1):
print("*", end="")
print()

for i in range(n-1, 0, -1):
for j in range(1, i+1):
print("*", end="")
print()