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 com.codejam.twelve;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashMap;
import java.util.HashSet;

public class ProbC {
	public static void main(String[] args) throws IOException {
		FileReader fr = new FileReader(
				"D:\\Dev\\Workspaces\\Android\\codejam\\io\\qualification\\C-large.in");
		FileWriter fw = new FileWriter(
				"D:\\Dev\\Workspaces\\Android\\codejam\\io\\qualification\\C-large.out");
		BufferedReader br = new BufferedReader(fr);
		BufferedWriter bw = new BufferedWriter(fw);

		int t = Integer.parseInt(br.readLine());

		for (int l = 1; l <= t; l++) {
			String s = br.readLine();
			bw.append("Case #" + l + ": ");

			String ss[] = s.split(" ");

			int A = Integer.parseInt(ss[0]);
			int B = Integer.parseInt(ss[1]);

			int ans = 0;
			HashSet<String> hs = new HashSet<String>();

			for (int i = A; i < B; i++) {
				String n = "" + i;
				int len = n.length();
				for (int j = 0; j < len - 1; j++) {
					n = n.charAt(n.length() - 1)
							+ n.substring(0, n.length() - 1);
					int nn = Integer.parseInt(n);
					if (nn > i && nn <= B) {
						/*System.out.println(i + "," + nn);
						if (hs.contains(i + "," + nn)) {
							System.out.println("**********");
						} else*/
						if (!hs.contains(i + "," + nn)){
							hs.add(i + "," + nn);
							ans++;
						}
					}
				}

			}

			bw.append("" + ans);

			bw.newLine();
		}

		bw.flush();
		bw.close();
		br.close();
	}
}
