/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package recyclednumbers;

import java.util.HashSet;

/**
 *
 * @author vandit
 */
public class RecycleNumbers {

    private HashSet<String> numbers = new HashSet<String>();
    private HashSet<String> initialTempNumbers = new HashSet<String>();
    private HashSet<String> finalTempNumbers = new HashSet<String>();

    HashSet<Pair> numberPairs = new HashSet<Pair>();


    private void findRecycledNumbers(int start, int end, int places) {


        for (int i = start; i <= end; i++) {
            String initialNumber = Integer.toString(i);
            //if (!(numbers.contains(initialNumber) || finalTempNumbers.contains(initialNumber))) {

                StringBuffer tempNumber = new StringBuffer(initialNumber);
                int len = tempNumber.length();
                int startIndexToMove = len - places;
                String tempString = tempNumber.substring(startIndexToMove);
                if ((places == 1 && tempString.equals("0")) || tempString.charAt(0) == '0') {
                    continue;
                }
                tempNumber.delete(startIndexToMove, len);
                String finalTempNumber = tempString + tempNumber.toString();

                if (! (finalTempNumber.equals(initialNumber) || Integer.parseInt(finalTempNumber) > end || Integer.parseInt(finalTempNumber) < Integer.parseInt(initialNumber))) {
                    numbers.add(initialNumber);
                    finalTempNumbers.add(finalTempNumber);
                    Pair pair = new Pair(finalTempNumber,initialNumber);
                    numberPairs.add(pair);
                }
            }

        

    }

    public HashSet<Pair> findAllRecycledNumbers(int start, int end) {
        int length = Integer.toString(start).length();
        for (int i = 1; i < length; i++) {
            findRecycledNumbers(start, end, i);
        }
        return numberPairs;
    }
}


import java.io.BufferedReader;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.OutputStream;
import java.io.PrintStream;
import java.util.HashSet;

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
/**
 *
 * @author bgamlath
 */
public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws Exception {
        // TODO code application logic here
        Integer.parseInt("00001");
        BufferedReader in = new BufferedReader(new FileReader("input.txt"));
        PrintStream out = new PrintStream("output.txt");
        int n = Integer.parseInt(in.readLine());
        for(int i = 1; i<=n; i++){
            out.println("Case #" + i + ": " + getRes(in.readLine()));
        }
    }
    static int getRes(String str){
        String[] m = str.split(" ");
        int a = Integer.parseInt(m[0]);
        int b = Integer.parseInt(m[1]);
        int res = 0;
        for(int i = a; i<=b; i++){
            res += count(i, b);
        }
        return res;
    }

    static int count(int i, int b){
        HashSet<Integer> k = new HashSet<Integer>();
        String s = i + "";
        int len = s.length();
        int t = i;
        for(int  j = 1; j< len; j++){
            k.add(Integer.parseInt((s.substring(j) + s.substring(0,j))));
        }
        int res = 0;
        for(int j: k){
            if((j+"").length()==len && j>i && j<=b)
                res++;
        }
        return res;
        
    }
}
