package zut;

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Kosmolot {

    private static final String shipBuildingChar = "*";
    private static final String nextLineChar = "\n";
    private static final String spaceChar = " ";

    public static void main(String[] args) {
        try {
        if(args.length == 2){
            int size = Integer.parseInt(args[0]);
            String ifShield = args[1];
            if(validateInput(size, ifShield )){
                printShip(size, ifShield);
            }
        }
        } catch(Exception ex){
        }
        finally{
         System.exit(0);
        }
    }

    private static void printShip(int size,String isShield){
        Boolean ifShield = isShield.toLowerCase().equals("y");
        StringBuilder boxBuilder = new StringBuilder();
        if(!ifShield){
            for (int j = 1; j <= size; j++) {
                for (int i = 0; i < size; i++) {
                    for (int k = 0; k < j; k++) {
                        boxBuilder.append(shipBuildingChar);
                    }
                    if(j != size && i != size - 1){
                        for (int k = j; k < size; k++) {
                        boxBuilder.append(spaceChar);
                        }
                    } else if(i == size - 1){
                       boxBuilder.append(nextLineChar);
                    }
                }
            }
            for (int j = size-1; j >= 1; j--) {
                for (int i = 0; i < size; i++) {
                    for (int k = 0; k < j; k++) {
                        boxBuilder.append(shipBuildingChar);
                    }
                    if(i != size - 1){
                        for (int k = j; k < size; k++) {
                            boxBuilder.append(spaceChar);
                        }
                    } else{
                       boxBuilder.append(nextLineChar);
                    }
                }
            }
        }
        System.out.print(boxBuilder.toString());
    }

    private static Boolean validateInput(int size, String isShield)
    {
        Boolean isValid = true;
        if(size < 1 || size > 75){
            isValid = false;
        }
        if(!isShield.toLowerCase().equals("y") && !isShield.toLowerCase().equals("n")){
            isValid = false;
        }
        return isValid;
    }
}