/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package gcj;

import java.io.File;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.Scanner;

/**
 *
 * @author daniele
 */
public class GCJ_C {
    
    public static void main(String[] args) throws Exception{
        
        
        
        Scanner in = new Scanner(new File(args[0]));
        FileWriter out = new FileWriter("/home/daniele/Scrivania/Output");
        

        int prove=in.nextInt();
        int min,max;
        int cifre;
        int cifreaus;
        String temp;
        int aus;
        int count=0;
        ArrayList<Integer> vals = new ArrayList<Integer>();
        int jcount=0;
        ArrayList<Integer> perm = new ArrayList<Integer>();
        
        out.write("");
        out.flush();
        
        for(int i=1;i<=prove;i++){
            
            out.append("Case #" +i+": ");out.flush();
            
            min=in.nextInt();
            max=in.nextInt();
            
            for(int j=min;j<=max;j++){
               if(!vals.contains(j)){
                    temp=""+j;
                    cifre=temp.length();
                    aus=j;
                    perm.add(j);
                    for(int k=1;k<cifre;k++){
                        aus=rotateOnce(aus);
                        temp=""+aus;
                        cifreaus=temp.length();//elusione zeri iniziali
                        if(aus>=min && aus<=max && aus!=j && cifreaus==cifre && nobody(vals,perm)){ 
                            perm.add(aus);
                            jcount ++;
                            
                        }
                        
                    }
                    while(jcount>0){count+=jcount; jcount--;}
                    vals.addAll(perm);
                    perm= new ArrayList<Integer>();
                    
                }
            }
            out.append(count+"\n");out.flush();
            count=0;
            vals= new ArrayList<Integer>();
        }
        
        
        
    }
        static public int rotateOnce(int n){
            String s=""+n;
            if(s.length()>1){
                s=s.charAt(s.length()-1) + s.substring(0,s.length()-1);
                n=Integer.parseInt(s);
            }
            return n;
        }    
        
        static public boolean nobody(ArrayList<Integer> v,ArrayList<Integer> a){;
            for(int i=0;i<a.size();i++)
                if(v.contains(a.get(i))) return false;
            return true;
        } 
    
}


import java.io.IOException;
import java.nio.charset.Charset;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.HashSet;
import java.util.List;
import java.util.Set;


public class Recycled {
	
	public static void main(String[] args) throws IOException {
		Path input = Paths.get("/Users/mdymczyk/google-codejam/Tongues/src/input.in");
		List<String> lines = Files.readAllLines(input, Charset.forName("UTF-8"));
		lines.remove(0);
		int i = 1;
		for(String line : lines) {
			Set<Pair> pairs = new HashSet<Pair>();
			StringBuilder sb = new StringBuilder();
			sb.append("Case #"+i+": ");
		
			int lower = Integer.parseInt(line.split(" ")[0]); 
			int upper = Integer.parseInt(line.split(" ")[1]); 
			int length = line.split(" ")[0].length();
			
			for(int j = lower ; j <= upper ; j++) {
				for(int k = 1; k < length; k++) {
					int rearranged = rearrangeLastNDigits(j, k);
					if(rearranged != j && (rearranged >= lower && rearranged <= upper)){
						pairs.add(new Pair(j, rearranged));
					}
				}
			}
			sb.append(pairs.size());
			System.out.println(sb);
			i++;
		}
	}

	private static int rearrangeLastNDigits(int j, int k) {
		String stringRepresentation = Integer.toString(j);
		String reordered = stringRepresentation.substring(k, stringRepresentation.length()) + stringRepresentation.substring(0, k);
		return Integer.parseInt(reordered);
	}
	
}

class Pair {
	int n, m;

	public Pair(int n, int m) {
		this.n = n;
		this.m = m;
	}
	
	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * m*n;
		return result;
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		Pair other = (Pair) obj;
		if (m != other.m && m != other.n)
			return false;
		if (n != other.n && n != other.m)
			return false;
		return true;
	}
}
