import java.util.*;

class Unique{
    private int m,n,frequency;
    private String output;
    public Unique(int m, int n){
        this.m=m;
        this.n=n;
        findUniqueDigitNumbers();
    }
    public void findUniqueDigitNumbers(){
        frequency=0;
        output="THE UNIQUE-DIGIT INTEGERS ARE:-\n\t";
        for( int i=m; i<=n; i++){
            if(isUniqeNumber(i)){
                frequency++;
                output+=i+", ";
            }
        }
        output=output.substring(0, output.length()-2)+".";
    }
    private boolean isUniqeNumber(int n){
        boolean unique[] = new boolean[10];
        int digit;
        for( int temp=n;temp>0; temp/=10){
            digit=temp%10;
            if( unique[digit]) return false;
            unique[digit]=true;
        }
        return true;
    }
    public String toString(){
        return output;
    }
    public int getFrequency(){
        return frequency;
    }
}
class ISC2007Q3 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.print("INPUT:\tm = ");
        int m = in.nextInt();
        System.out.print("\tn = ");
        int n = in.nextInt();
        Unique obj = new Unique(m,n);
        System.out.println("OUTPUT:"+obj);
        System.out.println("FREQUENCY OF UNIQUE-DIGIT IN INTEGERS IS : "+obj.getFrequency());
        in.close();
    }
}