/*
 * 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.File;
import java.io.FileInputStream;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.InputStreamReader;
import java.io.Reader;
import java.util.HashSet;
import java.util.Set;


public class ProB {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		File infile = new File("C-large.in");
		File outfile = new File("out.txt");
		BufferedReader reader = null;
		BufferedWriter writer = null;
		try{
			reader = new BufferedReader(new FileReader(infile));
			writer = new BufferedWriter(new FileWriter(outfile));
			String ss = reader.readLine();
			String out;
			String []nums;
			int t = Integer.parseInt(ss),i,j,res;
			int a,b;
			for(i=1;i<=t;i++){
				out = "Case #" + i + ": ";
				ss = reader.readLine();
				nums = ss.split(" ");
				a = Integer.parseInt(nums[0]);
				b = Integer.parseInt(nums[1]);
				res = 0;
				for(j=a;j<b;j++){
					res += isRecycle(j,b);
				}
				out += res;
				writer.write(out);
				writer.newLine();
			}
			reader.close();
			writer.close();
		}catch(Exception e){
			e.printStackTrace();
		}
	}
	
	private static int isRecycle(int p,int b){
		int res = 0;
		String s = "";
		Set set = new HashSet();
		s += p;
		int len = s.length();
		int base = 1,i,max;
		for(i=1;i<len;i++) base *= 10;
		max = base * 10;
		int head,tail;
		while(base >= 10){
			head = p / base;
			tail = p % base;
			if(tail >= (base / 10)){
				tail *= max / base;
				tail += head;
				if(tail > p && tail <=b) {
					if(!set.contains(tail)){
						set.add(tail);
						res++;
					}
				}
			}
			base /= 10;
		}
		return res;
	}
	
	private static void sort(int []scores,int n)
	{
		int i,j,t,s;
		for(i=0;i<n;i++){
			t = i;
			s = scores[i];
			for(j=i+1;j<n;j++){
				if(scores[j] > s){
					s = scores[j];
					t = j;
				}
			}
			s = scores[i];
			scores[i] = scores[t];
			scores[t] = s;
		}
	}

}
