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.*;

public class Main{
  public static void main(String[] args){
    Scanner sc=new Scanner(System.in);
    char[] a=sc.next().toCharArray();
    char[] b=sc.next().toCharArray();
    char[] c=sc.next().toCharArray();
    a[0]=String.valueOf(a[0]).toUpperCase().charAt(0);
    b[0]=String.valueOf(b[0]).toUpperCase().charAt(0);
    c[0]=String.valueOf(c[0]).toUpperCase().charAt(0);
    char[] d={a[0],b[0],c[0]};
    String s=String.valueOf(d);
    System.out.println(s);
  }
}