write a go solution for Description:
Capitalization is writing a word with its first letter as a capital letter. Your task is to capitalize the given word.

Note, that during capitalization all the letters except the first one remains unchanged.

Input Format:
A single line contains a non-empty word. This word consists of lowercase and uppercase English letters. The length of the word will not exceed 103.

Output Format:
Output the given word after capitalization.

Note:
None. Output only the code with no comments, explanation, or additional text.