STOP Sign

import java.lang.annotation.Repeatable;
import java.util.Scanner;
public class Stop {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        System.out.print("Please enter your number: ");
        int entryNumber = scan.nextInt();
        FirstLine(entryNumber);
        Upper(entryNumber);
        Middle(entryNumber);
        Lower(entryNumber);

    }
    public static void FirstLine(int enteredNumber){
        System.out.printf("%s%s%s", RepeatStr(".", enteredNumber+1),
                                    RepeatStr("_", 2*enteredNumber +1),
                                    RepeatStr(".", enteredNumber+1));
        System.out.println();
    }
    public static void Upper(int enteredNumber){
        int dashes = 0;
        for(int i = 1; i<=enteredNumber;i++) {
            System.out.println(String.format("%s//%s\\\\%s", RepeatStr(".", enteredNumber - i + 1),
                                                             RepeatStr("_", ((enteredNumber * 2) - 1) + (2 * dashes)),
                                                             RepeatStr(".", enteredNumber - i + 1)));
            dashes++;
        }
    }
    public static void Middle(int enteredNumber){
        int dashes = 0;

        if (enteredNumber > 3){

            for (int i = 3; i<enteredNumber;i++){
                dashes+=1;
            }
            System.out.println(String.format("//%sSTOP!%s\\\\",RepeatStr("_", enteredNumber+dashes ),
                                                               RepeatStr("_", enteredNumber+dashes )));
            dashes++;
        }
        else {
            System.out.println(String.format("//%sSTOP!%s\\\\",RepeatStr("_", enteredNumber+dashes ),
                                                               RepeatStr("_", enteredNumber+dashes )));
        }
    }
    public static void Lower(int enteredNumber){
        int dashes = 0;
        for(int i = enteredNumber; i>=1;i--) {
            System.out.println(String.format("%s\\\\%s//%s", RepeatStr(".", enteredNumber - i),
                                                             RepeatStr("_", ((enteredNumber * 4) - 1) - (dashes * 2)),
                                                             RepeatStr(".", enteredNumber - i )));
            dashes++;
        }
    }



    public static String RepeatStr(String symbols, int n){
          String test = "";
          for (int i = 0; i < n; i++){
              test += symbols;
          }
          return test;
      }

}