package codejam;

import java.util.*;
import java.io.*;

public class RecycledNumbers {
	public static void main(String[] args) throws IOException {
		BufferedReader in = new BufferedReader(new FileReader("in.txt"));
		PrintWriter out = new PrintWriter(new File("out.txt"));
		
		int T = Integer.parseInt(in.readLine());
		for (int t = 1; t <= T; ++t) {
			String[] parts = in.readLine().split("[ ]+");
			int A = Integer.parseInt(parts[0]);
			int B = Integer.parseInt(parts[1]);
			
			int cnt = 0;
			for (int i = A; i < B; ++i) {
				String str = String.valueOf(i);
				int n = str.length();
				String res = "";
				Set<Integer> seen = new HashSet<Integer>();
				for (int j = n - 1; j > 0; --j) {
					res = str.substring(j) + str.substring(0, j);
					int k = Integer.parseInt(res);
					if (k > i && k <= B) {
						//System.out.println("(" + i + ", " + k + ")");
						if (!seen.contains(k)) {
							++cnt;
							seen.add(k);
						}
					}
				}
			}

			out.println("Case #" + t + ": " + cnt);
		}
		
		in.close();
		out.close();
		System.exit(0);
	}
}

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

public class Recycled {

  public static void main(String[] args) throws IOException {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    String line = br.readLine();
    int t = Integer.parseInt(line);
    for (int i = 0; i < t; i++) {
      Set<String> set = new HashSet<String>();
      line = br.readLine();
      String[] split = line.split(" ");
      int A = Integer.parseInt(split[0]);
      int B = Integer.parseInt(split[1]);
      int digits = String.valueOf(A).length();
      if (digits != 1){
        for (int j = A; j <= B; j++) {
          String oldString = String.valueOf(j);
//          System.out.println("AA  " + oldString);
          for (int j2 = 1; j2 < digits; j2++) {
            String newString = oldString.substring(j2).concat(oldString.substring(0, j2));
            if(newString.charAt(0) == '0')continue;
            int newInt = Integer.valueOf(newString);
            if (newInt >= A && newInt <= B && j<newInt) {
//              System.out.println("BBB  " + newString);
              set.add(oldString+newString);
            }
          }
        }
      }
      System.out.println("Case #" + (i + 1) + ": " + set.size());
    }
  }

}
