/*
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 * 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.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Formatter;
import java.util.Scanner;

public class G3 {
	private static Scanner inp;
	private static Formatter out;
	private static int T = 0;
	private static int A = 0;
	private static int B = 0;
	private static int cnt = 0;
	private static ArrayList<Integer> arr;
	private static ArrayList<String> arr2;
	
	public static void main(String[] args) {
		try {
			inp = new Scanner(new File("test.txt"));
		} catch (FileNotFoundException e) {
			System.out.println("File not found!");
		}
		try {
			out = new Formatter("out.txt");
		} catch (FileNotFoundException e) {
			System.out.println("File not found!");
		}
		T = inp.nextInt();
		inp.nextLine();
		arr = new ArrayList<Integer>();
		arr2 = new ArrayList<String>();
		for(int i = 0; i < T; i++) {
			out.format("Case #%d: ", i+1);
			A = inp.nextInt();
			B = inp.nextInt();
			cnt = 0;
			arr.clear();
			arr2.clear();
			for(int j = A; j <= B; j++) {
				for(int k = 1; k < Math.ceil(Math.log10(j)); k++) {
					int tmp = move(j,k);
					//(arr.indexOf(tmp) == -1 || arr.indexOf(j) == -1)
					if(tmp >= A && tmp <= B && (arr2.indexOf(tmp+""+j) == -1 || arr2.indexOf(j+""+tmp) == -1) && tmp != j) {
						cnt++;
						arr.add(j);
						arr.add(tmp);
						arr2.add(tmp+""+j);
						arr2.add(j+""+tmp);
						//System.out.println(j+":"+tmp);
						//break;
					}
				}
			}
			out.format("%d\r\n", cnt);
			//System.out.println("Case #"+(i+1)+": "+cnt);
		}
		inp.close();
		out.close();
	}
	
	public static int move(int n1, int n0) {
		int n2 = n1 % (int) Math.pow(10, n0);
		double n3 = Math.floor(Math.log10(n1));
		int n4 = (n1 - n2) / (int) Math.pow(10, n0);
		double n5 = Math.pow(10, n3+1-n0) * n2;
		double n6 = n5 + n4;
		return (int) n6;
	}
}
