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: Runtime Error)

import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class Main {

  public static void main(String[] args) {
      Scanner in = new Scanner(System.in);
      int result;
      String a = in.nextLine();
      String b = in.nextLine();

      BigInteger aa = new BigInteger(a);
      BigInteger bb = new BigInteger(b);

      result = aa.compareTo(bb);

      if (result == 0) {
        System.out.println("EQUAL");
      } else if (result == 1) {
        System.out.println("GREATER");
      } else if (result == -1) {
          System.out.println("LESS");
      }
  }
}