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A - Three-letter acronym

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.

atcoder beginner contest

ABC

The initial letters of atcoder, beginner and contest are a, b and c. Uppercase and concatenate them to obtain ABC.

resident register number

RRN

k nearest neighbor

KNN

async layered coding

ALC