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.