using System;

public class Convertuppercase{

    static void uppercase(String input){

        String output = "";

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

            if(input[i]>='a' && input[i]<='z'){

                output+= (char)(input[i]-'a' + 'A');

            }

            else{

                output+=input[i];

            }

        }

        Console.WriteLine(output);

    }

    public static void Main(String[] args){

        String input = Console.ReadLine();

        uppercase(input);

        //Console.Write(output);

    }

}

​