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.
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 10<sup class="upper-index">3</sup>.
def capitalize_word(word):
    return word[0].upper() + word[1:]

# 读取输入
input_word = input()

# 调用函数进行首字母大写操作
capitalized_word = capitalize_word(input_word)

# 输出结果
print(capitalized_word)