import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;

public class CountAlphabetsPerLineRunner {
	public static void main(String[] args) {

		try {
			File inputFile = new File("day.txt");
			Scanner input = new Scanner(inputFile);

			int lineNumber = 1;

			while (input.hasNextLine()) {
				String line = input.nextLine();
				int count = 0;
				for (int i = 0; i < line.length(); i++) {
					char ch = line.charAt(i);
					if (Character.isLetter(ch)) {
						count++;
					}
				}
				System.out.println(" Line " + lineNumber + ": " + count + " alphabets");
				lineNumber++;
			}
			input.close();
		} catch (FileNotFoundException e) {
			System.out.println("File not found.");
		}
	}
}