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.Scanner;

/**
 * Created by IntelliJ IDEA.
 * User: tanin
 * Date: 4/14/12
 * Time: 9:54 AM
 * To change this template use File | Settings | File Templates.
 */
public class Recycled {


    public static void main(String[] args) throws Exception {

        String filename = "Recycled/large";
        String outFilename = filename + "_out";

        FileInputStream fis = new FileInputStream(new File(filename));
        Scanner input = new Scanner(new BufferedInputStream(fis));

        FileOutputStream fOut = new FileOutputStream(new File(outFilename));
        BufferedOutputStream bOut = new BufferedOutputStream(fOut);
        DataOutputStream out = new DataOutputStream(bOut);

        int numCases = input.nextInt();
        input.nextLine();

        for (int caseNumber=0;caseNumber<numCases;caseNumber++) {

            int a = input.nextInt();
            int b = input.nextInt();
            out.writeBytes("Case #" + (caseNumber+1) + ": " + solve(a, b) + "\n");
        }

        out.flush();
        out.close();

        bOut.flush();
        bOut.close();

        fOut.flush();
        fOut.close();
    }

    static boolean[] checked = new boolean[2000001];
    public static long solve(int a, int b) {

        for (int i=0;i<checked.length;i++) {
            checked[i] = false;
        }
        
        long count = 0;

        for (int number=a;number<=b;number++) {
        
            if (checked[number] == true) continue;

            int multiple = getMultiple(number);
            checked[number] = true;
            int countValid = 1;
            
            int run = next(number, multiple);
            while (run != number) {

                if (run >= multiple && a <= run && run <= b) {
                    checked[run] = true;
                    countValid++;
                    
                    //System.out.print(run + " ");
                }
                
                run = next(run, multiple);
            }
            
            if (countValid == 1) continue;
            //System.out.println(number);
            
            count += countValid * (countValid - 1) / 2;
        }

        return count;
    }
    
    public static int getMultiple(int s)  {
        if (s < 10) return 1;
        else if (s < 100) return 10;
        else if (s < 1000) return 100;
        else if (s < 10000) return 1000;
        else if (s < 100000) return 10000;
        else if (s < 1000000) return 100000;
        else if (s < 10000000) return 1000000;
        else {
            System.out.println("Fuck you");
            return -100000000;
        }
    }
    
    public static int next(int s, int multiple) {
        int residue = s % 10;
        return residue * multiple + s / 10;
    }

}
