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 Java7 (OpenJDK 1.7.0) (judge verdict: Accepted)

import java.util.*;

// ABC 6-C
// http://abc006.contest.atcoder.jp/tasks/abc006_3
 
public class Main {
	
	public static void main (String[] args) throws java.lang.Exception {
		Scanner in = new Scanner(System.in);
		
		String s1 = in.next();
		String s2 = in.next();
		String s3 = in.next();
		
		System.out.printf("%s%s%s\n", s1.substring(0, 1).toUpperCase(), s2.substring(0, 1).toUpperCase(), s3.substring(0, 1).toUpperCase());
	}
	
}