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<iostream>
#include<fstream>
#include<string>
#include<cmath>
#include<queue>
using namespace std;


int main(){
	
	string A,B;
	int numA,numB,dA,dB;
	int i;
	
	cin >> A;
	cin >> B;
	
	numA=A.length();
	numB=B.length();
	
	if (numA>numB){
		cout<<"GREATER"<<endl;
	}
	else if(numA<numB){
		cout<<"LESS"<<endl;
	}
	else{
		for(i=numA;i>=1;i--){
			if(A[i]>B[i]){
				cout<<"GREATER"<<endl;
				break;
			}
			else if(A[i]<B[i]){
				cout<<"LESS"<<endl;
				break;
			}
			else{
				if(i==1){
					cout<<"EQUAL"<<endl;
					break;
				}
			}
		}
	}


return 0;
};