import java.util.Scanner;

public class task1 {

    public static void main(String[] args) {
        // TODO Auto-generated method stub

        //Create a scanner object
        Scanner input = new Scanner(System.in);

        //Prompt user's input
        System.out.println("Enter strings (use a space to separate them; hit enter to finish) : ");

        String str = input.nextLine();

        // use split to divide the string into different words cutting by " "
        String [] wordsArray = str.trim().split(" ");

        System.out.println("The length of string is " + wordsArray.length);

        for (int i = 0; i < wordsArray.length; i++) {
            char[] eachLetterinArray = wordsArray[i].toCharArray();
            int count = 0;
            for (int j = 0; j < eachLetterinArray.length; j++) {
                if ((eachLetterinArray[j] + 'a' - 97 >= 65 && eachLetterinArray[j] + 'a' - 97 <= 90)
                || (eachLetterinArray[j] + 'a' - 97 >= 97 && eachLetterinArray[j] + 'a' - 97 <= 122)) {

                    count++;
                }
            }
            System.out.println(count);
        }
    }
}