/*
 * 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.BufferedReader;
import java.io.BufferedWriter;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.InputStreamReader;

public class Recycled {
	static int no_Test_Cases =0; 			  		//number of test cases
	static String input_Array[];					//to read input file	
	static int output_Array[];  					// to write the t output lines
		
	public static void main(String[] args) {
		readFile();
		
		for (int i = 0; i< no_Test_Cases; i++ ){
			recycled_Number(i);
		}
		
		writeFile();
	}		
		
	public static void readFile(){
		
		try{
				FileInputStream fstream = new FileInputStream("C:/sarab/input.txt");
                DataInputStream in = new DataInputStream(fstream);
                BufferedReader br = new BufferedReader(new InputStreamReader(in));
               
                String strLine;
                
                strLine = br.readLine();
                no_Test_Cases = Integer.parseInt(strLine);
                
                input_Array = new String[no_Test_Cases];
                output_Array = new int[no_Test_Cases];
                
                for (int i = 0; i< no_Test_Cases; i++){
                		strLine = br.readLine();
                		input_Array[i] = strLine;
                } 		
                //Close the input stream
                in.close();
		}
        
		catch (Exception e){//Catch exception if any
                System.err.println("Error: " + e.getMessage());
        }
        
	} 
	
	public static void recycled_Number(int i){
		
		String s1 = input_Array[i];
		
		String s2[] = s1.split(" ");
		
		int a = Integer.parseInt(s2[0]);
		int b = Integer.parseInt(s2[1]);
		
		
		
		char c1[] = s2[0].toCharArray();
		int length = c1.length;
		
		int no_Array[] = new int[length-1];
		int counter = 0; 				
		String s3 = "";
		
		
		for (int i1 = a; i1 < b; i1++){
				String s4 = ""+i1;
				c1 = s4.toCharArray();
			for(int i2 = 0; i2 < length-1; i2++){
				
				for(int i3 =1; i3 <= length-1 ; i3++){
					s3 = s3+c1[i3];
				}
				s3 = s3+c1[0];
				//System.out.println(s3);
				no_Array[i2] = Integer.parseInt(s3);
				
				c1 = s3.toCharArray();
				s3 = "";
			
			}
			for (int i5 = 0; i5 < length -2 ;i5++){
				for (int i6 = i5+1; i6 < length -1; i6++){
					if(no_Array[i6] == no_Array[i5]){
						no_Array[i6] = i1;
					}
				}
			}
			for (int i4 =0; i4 < length-1 ; i4++){
				if (no_Array[i4] > i1 && no_Array[i4] <= b) {
					counter++;
					
				}
			}	
		
			
		}		
		output_Array[i]= counter;
		 
	}
		
		
	
	public static void writeFile(){
        String forOutput;
        try{
                 
                FileWriter fstream = new FileWriter("C:/sarab/output.txt");
                BufferedWriter out = new BufferedWriter(fstream);
                for (int i=0; i<no_Test_Cases; i++){
                	
                      forOutput="Case #"+(i+1)+": "+output_Array[i]+"";
                      out.write(forOutput);
                      out.newLine();
                }
                //Close the output stream
                out.close();
                }catch (Exception e){//Catch exception if any
                System.err.println("Error: " + e.getMessage());
                }

  }


}	

