import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashSet;

public class Recycled {
    public static void main(String[] args) {
        try {
            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
            int t = Integer.parseInt(br.readLine());
            for (int i = 0; i < t; i++) {
                String[] str = br.readLine().split(" ");
                int a = Integer.parseInt(str[0]);
                int b = Integer.parseInt(str[1]);
                System.out.println("Case #" + (i + 1) + ": " + find(a, b));
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static int find(int a, int b) {
        HashSet<Long> used = new HashSet<Long>();
        int digits = String.valueOf(a).length();
        if (digits == 1) return 0;
        for (int i = a; i <= b; i++) {
            int s = 10;
            int m = (int) Math.pow(10, digits-1);
            for (int j = 0; j < digits-1; j++) {
                int r = i % s;
                if (r < s/10) continue;
                int q = i / s;
                int rn = r * m + q;
                s *= 10; m /= 10;
                if (i != rn && rn >= a && rn <= b) {
                    long pp;
                    if (rn < i) pp = (long)rn << 30 | i;
                    else pp = (long)i << 30 | rn;
                    if (!used.contains(pp)) {
                        used.add(pp);
                    }
                }
            }
        }
        return used.size();
    }
}


package codejam;

import java.io.*;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;

/**
 *
 * @author Ronak
 */
public class C {    
    public static void main(String[] args) throws FileNotFoundException, IOException {
        
        File f = new File("C-large.in");
        FileInputStream fstream = new FileInputStream(f);
        DataInputStream in = new DataInputStream(fstream);
        BufferedReader br = new BufferedReader(new InputStreamReader(in));
        String strLine = "";
        int count = 0, T = 0;
        List<String> left = new ArrayList<String>();
        while ((strLine = br.readLine()) != null) {
            if (count == 0) {
                T = Integer.parseInt(strLine.trim());
            } else {
                strLine.trim();
                String[] l = strLine.split(" ");
                int min = Integer.parseInt(l[0]);
                int max = Integer.parseInt(l[1]);                
                System.out.print("Case #" + count + ": ");
                for (int n = min; n <= max; n++) {
                    String str = String.valueOf(n);
                    for (int i = 1; i < str.length(); i++) {
                        String temp = str.substring(i, str.length()) + str.substring(0, i);
                        if (temp.charAt(0) != '0') {
                            int m = Integer.parseInt(temp);
                            if (n < m && m <= max && n >= min) {
                                left.add(n + "" + m + "");
                            }
                        }
                    }
                }
                System.out.println(new ArrayList<String>(new HashSet<String>(left)).size());
                left.clear();
            }
            count++;
        }
    }
}
