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;
	}

}

package recycled;
import java.io.*;
import java.util.StringTokenizer;
import java.util.HashSet;

class Solucionar{
    int buscar(String base, String techo){
        int ret = 0;
        HashSet<Integer> cjto = new HashSet<Integer>();
        
        if ((base.length() == techo.length())||(base.length()==1)){
            int tam = (int) Math.pow(10 , base.length() - 1);
            int veces = base.length() - 1;
            
            int inicio = Integer.parseInt(base);
            int fin =  Integer.parseInt(techo);
            
            for (int i=inicio;i<fin;i++){
                int original = i;
                int numero = i;
                
                for (int h=0;h<veces;h++){
                    int cabeza = numero / tam;
                    int cola = numero % tam;
                    numero = cabeza + cola*10;
                    if  (  (original >= inicio)
                           && ( numero > original)
                            && ( fin >= numero)
                         ) 
                    {   
                        int ingresar = 10000 * original + numero;
                        if (! cjto.contains(ingresar))
                        {  //System.err.println(original + " + " + numero);
                           ret++;
                           cjto.add(ingresar);
                        }
                    }
                    
                }
                
            }
            
            
            
            //System.err.print(tam);
        }
        
        return ret;
    }
}
public class Recycled{
    public static void main(String[] args) throws Exception{
        Solucionar s = new Solucionar();
        s.buscar("1111", "2222");
        
        InputStreamReader isr = new InputStreamReader(System.in);
        BufferedReader br = new BufferedReader (isr);
        
        String linea;
        linea = br.readLine();
        int casos = Integer.parseInt(linea);
        
        for (int i=0;i<casos;i++){
            linea = br.readLine();
            StringTokenizer tk = new StringTokenizer(linea);
            String base = tk.nextToken();
            String techo = tk.nextToken();
            int ret = s.buscar(base, techo);
            System.out.println("Case #"+ (i+1) + ": " + ret );
        }
        
    }
}
