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 Default_2012;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;

public class C {

	public static void main(String[] args) throws Exception {
		Scanner in = new Scanner("IO_2012/inputs/C-small-attempt0.in");
		PrintWriter out = new PrintWriter("IO_2012/outputs/C-small-attempt0.out");
		
		int n = in.nextInt();

		for (int i = 1; i <= n; i++) {
			in.nextLine();

			int a = in.nextInt();
			int b = in.nextInt();

			int count = 0;

			if (a < 10 && b < 10) {
				out.println("Case #" + i + ": 0");
				continue;
			}

			int v[] = new int[b + 1];

			for (int z = a; z <= b; z++) {
				String s = String.valueOf(z);

				for (int j = 0; j < s.length(); j++) {
					int num, total = 0;
					for (int ii = j + 1; ii < s.length(); ii++) {
						num = s.charAt(ii) - '0';
						total *= 10;
						total += num;
					}

					for (int ii = 0; ii <= j; ii++) {
						num = s.charAt(ii) - '0';
						total *= 10;
						total += num;
					}

					if (total != z && total >= a && total <= b && z < total
							&& v[total] != z) {
						count++;
						v[total] = z;
					}

				}
			}

			out.println("Case #" + i + ": " + count);
		}
		out.close();
	}

	public static class Scanner {
		private final BufferedReader in;
		private String line = "";
		private int pos;
		private int lineNo;

		public Scanner(String Arquive) throws Exception {
			in = new BufferedReader(new FileReader(Arquive));
			nextLine();
		}

		public boolean hasNext() throws IOException {
			return in.ready();
		}

		public void close() {
			try {
				in.close();
			} catch (IOException e) {
				throw new AssertionError("Failed to close with " + e);
			}
		}

		public void nextLine() {
			try {
				line = in.readLine();
			} catch (IOException e) {
				throw new AssertionError("Failed to read line with " + e);
			}
			pos = 0;
			lineNo++;
		}

		public String next() {
			if (pos != 0) {
				pos++;
			}
			StringBuilder sb = new StringBuilder();
			while (pos < line.length() && line.charAt(pos) > ' ')
				sb.append(line.charAt(pos++));
			return sb.toString();
		}

		public int nextInt() {
			int num, total = 0;
			boolean negativo = false;

			if (pos != 0) {
				pos++;
			}
			if (pos < line.length() && line.charAt(pos) == '-') {
				negativo = true;
				pos++;
			}

			while (pos < line.length() && line.charAt(pos) > ' ') {
				num = line.charAt(pos++) - '0';
				total *= 10;
				total += num;
			}
			if (negativo)
				total *= -1;

			return total;
		}

		public long nextLong() {
			long num, total = 0;
			boolean negativo = false;
			if (pos != 0) {
				pos++;
			}
			if (pos < line.length() && line.charAt(pos) == '-') {
				negativo = true;
				pos++;
			}
			while (pos < line.length() && line.charAt(pos) > ' ') {
				num = line.charAt(pos++) - '0';
				total *= 10;
				total += num;
			}
			if (negativo)
				total *= -1;
			return total;
		}
	}

}
