Validate Special String

You are given a string S. Your task is to check whether the string satisfies the following two conditions:

• The string contains exactly three uppercase English letters. In other words, if you let \(C = \{i \mid S[i] \text{ is an uppercase letter}\}\), then \(|C| = 3\).
• The string ends with the digit 7.

You are required to read the input from stdin and print either True or False to stdout according to the result. This problem can be solved using regular expressions; note that if you use a regex, any formulas in this description are given in \(\LaTeX\) format.

inputFormat

The input consists of a single line containing the string S.

Note: The input is provided via stdin.

outputFormat

Output a single line: True if the string satisfies both conditions, and False otherwise.

The output should be written to stdout.

ABCdefg7

True