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 C++14 (GCC 5.4.1) (judge verdict: Wrong Answer)

#include<bits/stdc++.h>
using namespace std;
int main(){
string a,b;
cin>>a>>b;
if(a.size()>b.size()){
    cout<<"GREATER";
    return 0;}
    else if(b.size()>a.size()){
        cout<<"LESS";return 0;
    }
for(int i=0;i<a.size();i++){
    if(a[i]>b[i]){
        cout<<"GREATER";
        return 0;
        }
    else if (a[i]<b[i]){
        cout<<"LESS";return 0;}
}
cout<<"EQUAL";
return 0;
}