import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;


public class Main {

//	static int MAX = 10000;
	static int MAX = 2000000;
	static Object[] All = new Object[MAX+1];
	
	static int size( int x ) {
		if(x>999999) return 7;
		if(x>99999)  return 6;
		if(x>9999)   return 5;
		if(x>999)    return 4;
		if(x>99)     return 3;
		if(x>9)      return 2;
		return 1;
	}
	static int[] rotate( int value ) {
		List<Integer> result = new ArrayList<Integer>();
		int[] V = new int[8];
		int s = size(value);
		int x = value;
		
		for(int i=s-1;i>=0;i--) {
			V[i] = x%10;
			x /=10;
		}
		int rot;
		for(int i=1; i<s; i++) {
			if(V[i]!=0){
				rot=0;
				for(int j=0,ii=i;j<s; j++,ii=(ii+1)%s){
					rot=rot*10+V[ii];
				}
				if(rot>value && !result.contains(rot))
					result.add(rot);
			}
		}
		if( result.isEmpty() )
			return null;
		int[] r = new int[result.size()];
		for(int i=0; i<r.length; i++)
			r[i]=result.get(i);
		return r;
	}
	
	static void precalculate() {
		for(int i=1; i<=MAX; i++){
			All[i] = rotate(i);
		}
	}
	static int solve( Scanner in ) {
		int A, B, sol=0;
		
		A = in.nextInt();
		B = in.nextInt();

		for( int i=A; i<=B; i++) {
//			List<Integer> result = rotate(i);
			if( All[i]!=null ) {
				for(int value: (int[])All[i] ) {
					if( value <= B )
						sol++;
				}
			}
		}

		return sol;
	}
	
	public static void main ( String args[] ) {
		int T; 
		Scanner in = new Scanner(System.in);
		T = in.nextInt();
		int cnt=0;
		int sol;
		precalculate();
		for( cnt=1; cnt<=T; cnt++ ) {
			sol = solve( in );
			System.out.printf("Case #%d: %d\n", cnt, sol);
		}

	}
}


import java.io.*;
import java.util.*;

public class Q3 {
    public static void main(String[] args) {
        Q3 q = new Q3();
        //System.out.println(q.calculate(1090000, 1900000));
        //q.test();
        //q.answerSmall();
        q.answerLarge();
    }
    
    public void answerSmall(){
        read("C-small-attempt0.IN", "Q3_small_output.txt");
    }
    
    public void answerLarge(){
        read("C-large.IN", "Q3_large_output.txt");
    }
    
    public void test(){
        read("Test3_input.txt", "Test3_output.txt");
    }
    
    public void read(String readFrom, String writeTo){
        try{
            Scanner in = new Scanner(new File(readFrom));
            File f = new File(writeTo);
            FileWriter fw = new FileWriter(f);
            int T = Integer.parseInt(in.nextLine());
            int A, B;
            String[] input;
            String answer;
            
            for(int i = 1; i <= T; i++) {
                input = in.nextLine().split(" ");
                A = Integer.parseInt(input[0]);
                B = Integer.parseInt(input[1]);
                
                answer = "" + calculate(A, B);
                if(i + 1 <= T)
                    answer += "\r\n";
                fw.write("Case #" + i + ": " + answer);
                
            }
            
            
            fw.close();
        }catch(Exception ex) {
            System.out.println(ex);
        }
    }
    
    public int calculate(int A, int B) {
        int num = 0, m;
        String hold;
        ArrayList<Integer> distinct = new ArrayList<Integer>();
        for(int n = A; n <= B; n++) {
            if(n > 10) {
                hold = "" + n;
                distinct.clear();
                for(int i = 1; i < hold.length(); i++) {
                    m = Integer.parseInt((hold.substring(i) + hold.substring(0,i)));
                    if(m <= B && n < m && !distinct.contains(m)) {
                        distinct.add(m);
                        num++;
                    }
                }
            }
        }
        return num;
    }
}
