Problem:
Score : 100 points

Problem Statement

You are given three words s_1, s_2 and s_3, each composed of lowercase English letters, with spaces in between.
Print the acronym formed from the uppercased initial letters of the words.

Constraints

s_1, s_2 and s_3 are composed of lowercase English letters.

1 ≤ |s_i| ≤ 10 (1≤i≤3)

Input

Input is given from Standard Input in the following format:

s_1 s_2 s_3

Output

Print the answer.

Sample Input 1

atcoder beginner contest

Sample Output 1

ABC

The initial letters of atcoder, beginner and contest are a, b and c. Uppercase and concatenate them to obtain ABC.

Sample Input 2

resident register number

Sample Output 2

RRN

Sample Input 3

k nearest neighbor

Sample Output 3

KNN

Sample Input 4

async layered coding

Sample Output 4

ALC

Solution in Java8 (OpenJDK 1.8.0) (judge verdict: Accepted)

import java.util.Scanner;


public class Main {
    
    public static void main(String[] args) {
        
        String s1,s2,s3;
        
        Scanner input = new Scanner(System.in);
        
        s1 = input.next();
        s2 = input.next();
        s3 = input.next();
        
       String a = s1.toUpperCase();
       String b = s2.toUpperCase();
       String c = s3.toUpperCase();
        
       char x = a.charAt(0);
       char y = b.charAt(0);
       char z = c.charAt(0);
       
       
        System.out.print(x);
        System.out.print(y);
        System.out.print(z);
        
        
        
    }
}