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);
		}

	}
}

package com.gdacarv.codejam;

import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.InputStreamReader;

public class ProblemC {

	public static void main(String [ ] args){
		try{
			FileInputStream fstream = new FileInputStream("input_problemC.in");
			DataInputStream in = new DataInputStream(fstream);
			BufferedReader br = new BufferedReader(new InputStreamReader(in));
			String input = new String();
			String line;
			while ((line = br.readLine()) != null)
				input += line + '\n';
			System.out.println(input);
			System.out.println(solveProblemC(input));
		}catch (Exception e){//Catch exception if any
			  System.err.println("Error: " + e.getMessage());
		}
		
	}


	private static String solveProblemC(String input) {
		String result = new String();
		String[] lines = input.split("\n"), numbers;
		int len = Integer.parseInt(lines[0]);
		int A, B, qt, current, aux, counterTemp = 0;
		String currentString;
		int[] temp = new int[10];
		for(int i = 1; i <= len; i++){
			result += "Case #" + i + ": ";
			numbers = lines[i].split(" ");
			A = Integer.parseInt(numbers[0]);
			B = Integer.parseInt(numbers[1]);
			qt = 0;
			for(current = A; current <= B; current++){
				currentString = String.valueOf(current);
				check: for(int j = 1; j < currentString.length(); j++){
					if(current < (aux = Integer.parseInt(currentString.substring(j) + currentString.substring(0, j))) && aux <= B){
						for(int l = 0; l < counterTemp; l++)
							if(temp[l] == aux)
								continue check;
						qt++;
						temp[counterTemp] = aux;
						counterTemp++;
						//System.out.println(current +","+aux);
					}
				}
				counterTemp = 0;
			}
			result += qt + "\n";
		}
		return result;
	}
}
