// AsterisksV2.java
// Print n rows of asterisks, 1st row 1 asterisk,
// 2nd row 3 asterisks, 3rd row 5 asterisks, etc.
// Example: n = 4
// *
// ***
// *****
// *******
// Author: Aaron Tan

import java.util.*;

class AsterisksV2 {

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        System.out.print("Enter n: ");
        int n = sc.nextInt();

        for (int i=1; i<=n; i++) {
            printStars(2*i-1);
            System.out.println();
        }
    }

    // This method prints one line of k asterisks
    public static void printStars(int k) {
        for (int i=0; i<k; i++)
            System.out.print("*"); // or System.out.print('*');
    }

}