using System;

public class Program

{

    public static void Main()

    {

        for(int i = 0; i < 10; i++) {

            Console.WriteLine(i);

        }

        string Name = "Peter";

        for(int i = 0; i < Name.Length; i++) {

            Console.WriteLine(Name[i]);

        }

        string[] Arr = {"Peter", "Paula", "Anton"};

        for(int i = 0; i < Arr.Length; i++) {

            Console.WriteLine(Arr[i]);

        }

        foreach(string s in Arr) {

            Console.WriteLine(s);

        }

        int j = 0;

        while(j < Arr.Length) {

            Console.WriteLine(Arr[j]);

            j++;

        }

    }

}