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

package Happy;
import java.io.*;
import java.math.*;
import java.lang.*;
import java.util.*;
import java.util.Arrays.*;
import java.io.BufferedReader;
//import java.io.IOException;
//import java.io.InputStreamReader;
//import java.io.PrintWriter;
//import java.util.StringTokenizer;

/**
 *
 * @author ipoqi
 */
public class Happy {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        new Happy().haha();
    }

    public void haha() {
        BufferedReader in = null;
        BufferedWriter out = null;
        try{
            in = new BufferedReader(new FileReader("C-large.in"));
            out = new BufferedWriter(new FileWriter("LLL.out"));
            int T = Integer.parseInt(in.readLine());
            System.out.println("T="+T);

            //LinkedList<Integer> mm = new LinkedList<Integer>();
            //mm.add(new LinkedList<Integer>());
           //int[][] mm;
           //for(int ii=0;ii<mm.length;ii++){
           //     mm[0][ii] = 1;
           //}


            for(int i=0;i<T;i++){
                String[] line = in.readLine().split(" ");
                int A = Integer.parseInt(line[0]);
                int B = Integer.parseInt(line[1]);
                //System.out.print(" A = "+A+"\n");
                //System.out.print(" B = "+B+"\n");

                int ans = 0;

                
                for(int j=A;j<B;j++){
                    int n=j;
                    if(n>=10){
                        String N = Integer.toString(n);
                        int nlen = N.length();
                        List<Integer> oks = new ArrayList<Integer>();
                        for(int k=0;k<nlen-1;k++){
                            String M = "";
                            for(int kk=1;kk<=nlen;kk++){
                                 M = M + N.charAt((k+kk)%nlen);
                            }
                            int m = Integer.parseInt(M);
                            //System.out.print(" N = "+N+"\n");
                            //System.out.print(" M = "+M+"\n");

                            if(m>n && m<=B) {
                                boolean isNewOne = true;
                                for(int kkk=0;kkk<oks.size();kkk++){
                                    //System.out.print(" KKK = "+oks.get(kkk)+"\n");
                                    if(m==oks.get(kkk)){
                                        isNewOne = false;
                                    }
                                }
                                if(isNewOne){
                                    //System.out.print(" N = "+N+"\n");
                                    //System.out.print(" M = "+M+"\n");
                                    oks.add(m);
                                    ans++;
                                }
                            }
                        }
                    }
                }
                out.write("Case #"+(i+1)+": "+ans+"\n");
                System.out.print("Case #"+(i+1)+": "+ans+"\n");
            }
            in.close();
            out.close();
        }catch(Exception e){
            e.printStackTrace();
            try{
                in.close();
                out.close();
            }catch(Exception e1){
                e1.printStackTrace();
            }
        }
        System.out.print("YES!\n");
    }

}
/**
* The HelloWorldApp class implements an application that
* simply prints "Hello World!" to standard output.
 */
import java.io.*;
import java.net.*;
import java.util.*;
import java.lang.Math;



class help{
	
	public help(){
		
	}
	
	static int power(int x, int n)  
	{  
		if (n == 0)  
			return 1;                   // anchor case  
		else   
			return power(x, n - 1) * x;   // inductive step (n > 0)  
	}  
	
	public static int solve(int n, int i, int len, int upper, HashMap<Integer,Integer> hash){   // say n=123 i=2 len=3
		int count=0;
		//System.out.println("n= "+n+"  i="+i+"   len="+len);
		
		int i2=n/power(10, i);    ///i2=1
		//System.out.println("i2= "+i2);
		int b=i2*power(10, i);	////b=100
		int j1=n-b;             ///// j1=23
		int i1=j1*(power(10, (len-i)));
		
		int n2=i1+i2; /// now we have 231
		//System.out.println("n2= "+n2);
		if (n2>n && n2<=upper) {
			if (hash.containsKey(n2)) {
				count+=0;
			}
			else {
				count+=1;
				hash.put(n2,1);
			}
		}
		return count;
	}
}

class solve{
	
	public static void main(String[] args)
	{
		BufferedReader bf= null;
        String line;
		int n;
		int n1,n2;
		int ans=0;
		
        try {
			
			
			
            bf = new BufferedReader(new InputStreamReader(System.in));
			int indicator=0;
			int playerno=0;
			String output="";
			
			BufferedWriter f=new BufferedWriter(new FileWriter("output.txt"));
			while ((line=bf.readLine())!=null) {
				HashMap<Integer,Integer> hash=new HashMap<Integer,Integer>();
				if (indicator==0) {
					n=Integer.parseInt(line);
				}
				else {
					String[] a=line.split(" ");
					int len=a[0].length();
					n1=Integer.parseInt(a[0]);
					n2 =Integer.parseInt(a[1]);
					/////////////////////////////////// now  solve this
					int number=n1;
					for (; number<n2; number++) {
						hash.clear();
						for (int i=1; i<len; i++) {
							int temp=help.solve(number, i, len,n2,hash);
							ans+=temp;
						}
					}
					playerno+=1;
					output+="Case #"+playerno+": "+ans+"\n";
					ans=0;
					
				}

				indicator=1;
				

			}
			f.write(output);
			f.close();
		}catch (Exception e) {
			System.out.println("exception 1");
		}
	
	}
}