import java.util.Scanner;

public class PaswwordValidator {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String password = scan.nextLine();
        Boolean isCorectpass = getValidpass(password);
        if (isCorectpass) {
            System.out.println("Password is valid");
        }
    }

    public static Boolean getValidpass(String password) {
        boolean isCoerect1 = getPaswwordLenght(password);
        boolean isCoerect2 = getCheckLettersOrDigits(password);
        boolean isCoerect3 = getCheckAtLeastTwoDigit(password);
        if (isCoerect1 && isCoerect2 && isCoerect3) {
            return true;
        }
        return false;
    }
		// Проверка дали има минимум 2 числа
    public static boolean getCheckAtLeastTwoDigit(String password) {
        int counter = 0;
        for (int i = 0; i < password.length(); i++) {
            char symbol = password.charAt(i);
            int symbolInDigit = (int) symbol;

            if (symbolInDigit >= 48 && symbolInDigit <= 57) {
                counter++;
            }
            if (password.length() - 1 == i) {
                if (counter < 2) {
                    System.out.println("Password must have at least 2 digits");
                    return false;
                }
            }
        }
        return true;
    }
		//Проверка дали има само букви и цифри
    public static boolean getCheckLettersOrDigits(String password) {
        for (int i = 0; i < password.length(); i++) {
            char symbol = password.charAt(i);
            if (!Character.isLetterOrDigit(symbol)) {
                System.out.println("Password must consist only of letters and digits");
                return false;
            }
        }
        return true;

    }
		// Проверка дали дължината на паролата е от 6 до 10 симовола включително
    public static boolean getPaswwordLenght(String password) {
        if (password.length() >= 6 && password.length() <= 10) {
            return true;
        } else {
            System.out.println("Password must be between 6 and 10 characters");
            return false;
        }
    }

}