import java.util.HashMap;
import java.util.HashSet;
import java.util.Scanner;

public class Recycle {

	private static HashMap<Integer, HashSet<Integer>> map = new HashMap<Integer, HashSet<Integer>>();
	private static HashSet<Integer> toSkip = new HashSet<Integer>();
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Scanner reader = new Scanner(System.in);
		int T = reader.nextInt();
		for (int tc = 1; tc <= T; tc++) {
			int a = reader.nextInt();
			int b = reader.nextInt();
			long before = System.currentTimeMillis();
			int res = doit(a, b);
			System.out.printf("Case #%d: %d\n", tc, res);
			long after = System.currentTimeMillis();
//			System.out.println("time taken: " + (after - before));
		}
	}

	private static int doit(int a, int b) {
		int count = 0;
		HashSet<Integer> skip = new HashSet<Integer>(toSkip);
		for (int i = a; i <= b; i++) {
			if (skip.contains(i))
				continue;
			HashSet<Integer> arr = generate(i);
//			if(arr.size() > 1) {
//				map.put(i, arr);
//			}
			// System.out.println(i + " --> " +
			// Arrays.deepToString(arr.toArray()));
			int temp = 0;
			if (arr.size() > 1) {
				for (int x : arr) {
					if (x >= a && x <= b) {
						temp++;
						skip.add(x);
					}
				}
				count += temp * (temp - 1) / 2;
			}
//			System.out.println("not skipping " + i + " gen: " + arr.size()+ " " + (temp * (temp - 1) / 2));
		}
		return count;
	}

	private static HashSet<Integer> generate(int num) {
		if(map.containsKey(num)) {
			HashSet<Integer> list = map.get(num);
			return list;
		}
		HashSet<Integer> list = new HashSet<Integer>();
		String s = "" + num;
		list.add(num);
		int len = s.length();
		for (int i = 1; i < len; i++) {
			String temp = s.substring(i) + s.substring(0, i);
			// System.out.println("temp: " + temp);
			if (temp.charAt(0) == '0')
				continue;
			int x = Integer.parseInt(temp);
			if( x <= 2000000) {
				list.add(x);
			}
		}
		if(list.size() > 1) {
			map.put(num, list);
		} else {
			toSkip.add(num);
		}
		return list;
	}

}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package gcodejam2012;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.PrintStream;
import java.math.BigInteger;
import java.util.LinkedList;
import java.util.Scanner;

/**
 *
 * @author alei
 */
public class C {
    public static void main(String[] Args) throws FileNotFoundException{
        Scanner sn = new Scanner(new FileInputStream("c.in"));
        System.setOut(new PrintStream("c.out"));
        int nCases = sn.nextInt();
        for(int i=0;i<nCases;i++){
            //System.out.println("Case #"+(i+1));
            sn.nextLine();            
            int A = sn.nextInt();
            int B = sn.nextInt();
            int nRec = calcRecycled(A,B);
            System.out.println("Case #"+(i+1)+": "+nRec);
        }
    }
    private static int calcRecycled(int A, int B) {
        int nRecycleds = 0;
        for(int n=A;n<=B;n++){
            String strNumber = n+"";            
            String curFt = "";
            LinkedList<String>pairs = new LinkedList<>();
            for(int j=0;j<strNumber.length()-1;j++){                                                        
                char curChar = strNumber.charAt(strNumber.length()-j-1);                
                if(curChar!='0'){
                    curFt =curChar + curFt;
                    String m = curFt+strNumber.substring(0,strNumber.length()-j-1);
                    int mint = Integer.parseInt(m);
                    if(mint>n){
                        if(mint>=A && mint <=B){
                            if(!pairs.contains(m)){
                                nRecycleds++;
                                pairs.add(m);
                            }
                            
                        }
                    }                   
                }              
                else{
                    curFt =curChar + curFt;
                }
            }
            
        }
        return nRecycleds;
    }
}
