/*
 * 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");
    }

}
import java.io.*;
import java.util.*;
import java.math.*;
public class Qual22C
{
	public static void main(String[] args) throws IOException
	{
		BufferedReader ips=new BufferedReader(new FileReader("C-large.in"));
		PrintWriter ops=new PrintWriter(new FileWriter("recno.in"));
		int T=Integer.parseInt(ips.readLine());
		for(int i=0;i<T;i++)
		{
			String line=ips.readLine();
			char[] ca=line.toCharArray();
			int count=0,j=0, t=0, A=0, B=0, rnc=0, n=0, m=0, rev=0, temp=0, tryy=0;
			for(j=ca.length-1; ca[j]!=' '; j--)
			{
				t=ca[j]-'0';
				B=B+(int)(Math.pow(10,count)*t);	
				count++;
			}
			j--;
			count=0;
			for(; j>=0; j--)
			{
				t=ca[j]-'0';
				A=A+(int)(Math.pow(10,count)*t);	
				count++;
			}
			//System.out.println("A: "+A+" B: "+B+" nog: "+count);
			n=A;
			int pw=0;
			for(int k=0; k<=(B-A); k++)
			{
				//n++;
				m=n;
				temp=m;
				rev=0;
				pw=0;
				while(temp!=0)
				{
					t=temp%10;
					rev=(rev*10)+t;
					temp=temp/10;
					pw++;
				}
				//System.out.println(rev);
				t=rev%10;
				tryy=(t*(int)(Math.pow(10,(count-1))));
				m=((m-tryy)*10)+t;
				//System.out.println(n+" : "+m);
				while(m!=n)
				{
					if(n<m && m>=A && m<=B)
						rnc++;
					temp=m;
					rev=0;
					pw=0;
					while(temp!=0)
					{
						t=temp%10;
						rev=(rev*10)+t;
						temp=temp/10;
					}
					//System.out.println(rev);
					t=rev%10;
					tryy=(t*(int)(Math.pow(10,(count-1))));
					//System.out.println(t);
					//System.out.println(tryy);
					if((m-tryy)<0)
						m=(m*10);
					else
						m=((m-tryy)*10)+t;
					//System.out.println("1. "+n+" : "+m);
				}
				n++;
			}
			ops.println("Case #"+(i+1)+": "+rnc);	
				
			System.out.println("Case #"+(i+1)+": "+rnc);	
		}
		ips.close();
		ops.close();
	}
}