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.FileReader;


public class C {

  private boolean isR(int a, int b) {

    char[] sa = String.valueOf(a).toCharArray();
    char[] sb = String.valueOf(b).toCharArray();

    if (sa.length != sb.length) return false;
    int n = sa.length;

    for (int i = 1; i < n; i++) {
      boolean ok = true;
      for (int k = 0; k < n; k++) {
        char c = sb[(k + i) % n];
        if (c != sa[k]) {
          ok = false;
          break;
        }
      }
      if (ok) return true;
    }

    return false;
  }

  int count(int a, int b) {
    int c = 0;
    for (int i = a; i < b; i++) {
      for (int j = i + 1; j <= b; j++) {
        if (isR(i, j)) {
          c++;
        }
      }
    }
    return c;
  }

  private void main2(String[] args) throws Exception {
    BufferedReader br = new BufferedReader(new FileReader(args[0]));
    String line = br.readLine();
    int count = Integer.parseInt(line);
    for (int i = 0; i < count; i++) {
      line = br.readLine();
      int s = line.indexOf(' ');
      int a = Integer.parseInt(line.substring(0, s));
      int b = Integer.parseInt(line.substring(s + 1));
      System.out.println("Case #" + (i + 1) + ": " + count(a, b));
    }
    br.close();
  }

  public static void main(String[] args) throws Exception {
    new C().main2(args);
  }


}
