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 JavaScript (node.js v5.12) (judge verdict: Accepted)

'use strict'

function main(input) {

  input = input.split(' ')

  const A = input[0][0].toUpperCase()
  const B = input[1][0].toUpperCase()
  const C = input[2][0].toUpperCase()
  const ans = A+B+C
  
  console.log(ans)
}
main(require("fs").readFileSync("/dev/stdin", "utf8"));