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: Accepted)

#include<bits/stdc++.h>
using namespace std;
int main(){
    int A, B, C, D, N, ans=0;
    vector<int> V(3);
    char tmp1, tmp2;
    string S[3];
    bool flag=true;
    
    cin >> S[0] >> S[1] >>S[2];
    S[0][0] -= 32;
    S[1][0] -= 32;
    S[2][0] -= 32; 
    cout << S[0][0] << S[1][0] << S[2][0] <<endl;
    

    // string S;
    // cin >>S;
    // cout << S + "pp"<<endl;
    // if(A+B==C || B+C==A || C+A==B)
    // 	puts("Yes");
    // else
    // 	puts("No");
}