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.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.*;

/**
 * @author rohitkg
 */
public class Task implements Runnable {
    private static final String TASK_ID = "C-large";
    private static final String IN_FILE = TASK_ID + ".in";
    private static final String OUT_FILE = TASK_ID + ".out";

    private Scanner in;
    private PrintWriter out;
    int n,i,t,A,B;
    
    int res;
   

    private void init() {
        try {
            in = new Scanner(new File(IN_FILE));
        } catch (FileNotFoundException ignored) {}
        try {
            out = new PrintWriter(OUT_FILE);
        } catch (FileNotFoundException ignored) {}
        
        n = in.nextInt();
    }

    private void read() {
        A=in.nextInt();
        B=in.nextInt();
    }

    private void solve() {
		res=0;
		
		if(A<10)
			return;
			
		HashSet<String> set=new HashSet<String>();	
		
		for(int i=A;i<=B;i++){
			String num ="" + i;
			int length=num.length();
			for(int pos=1;pos<=length;pos++){
				String recNum=num.substring(pos) + num.substring(0,pos);
				int recInt=Integer.parseInt(recNum);
				if(recInt>i && recInt<= B){
					//res++;
					
					if(!(set.contains(i + ", " +recInt) || set.contains(recInt + ", " + i))){
						set.add(i + ", " +recInt);
					}
					//	System.out.println(i + ", " +recInt);
					//else
							
					
					//out.println("Pairs : " + i + ", " + recInt);
				}
					
			}	
		}       
			
		res=set.size();	
    }

    private void write() {
        out.println("Case #" + t + ": " + res);
    }

    public void run() {
        init();
        for (t = 1; t <= n; t++) {
            read();
            solve();
            write();
        }
        out.close();
    }
    public static void main(String[] args) {
        new Thread(new Task()).start();
    }
}
