import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);

        String s = in.nextLine();
        int countBig = 0;
        int countSmall = 0;
        int countDigit = 0;

        if (s.length() < 8)
            System.out.print("NO");
        else {
            for (int i = 0; i < s.length(); i++) {
                if (Character.isLetter(s.charAt(i)))
                {
                    if (Character.isUpperCase(s.charAt(i)))
                        countBig++;
                    else
                        countSmall++;
                }
                if (Character.isDigit(s.charAt(i)))
                    countDigit++;
            }
            if (countBig > 0 && countSmall > 0 && countDigit > 0)
                System.out.print("YES");
            else
                System.out.print("NO");
        }
        in.close();
    }
}