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 qual;

import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

class RecycledPair
{
	int a; 
	int b;
	
	public RecycledPair(int a, int b) {
		super();
		this.a = a;
		this.b = b;
	}

	@Override
	public int hashCode() {
		final int PRIME = 31;
		int result = 1;
		result = PRIME * result + (a + b);
		result = PRIME * result + (a + b);
		return result;
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		final RecycledPair other = (RecycledPair) obj;
		if (a == other.a && b==other.b)
			return true;
		if (a == other.b && b==other.a)
		    return true;
		return false;
	}
	
	
	
}
public class RecycledNumbers {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);

		int T = in.nextInt();

		in.nextLine();

		for (int t = 0; t < T; t++) {
			String s = in.nextLine();
			String[] limit = s.split(" ");
			int A = Integer.parseInt(limit[0]);
			int B = Integer.parseInt(limit[1]);

			Set<RecycledPair> recycledPairsEncountered = new HashSet<RecycledPair>();

			int count = 0;
			for (int i = A; i <= B; i++) 
			{
				char[] num = String.valueOf(i).toCharArray();

				for (int k = num.length - 1; k >= 1; k--) 
				{
					String recycledNumber = "";
					if (num[k] != '0') 
					{
						int indx = k;
						while (indx < num.length)
							recycledNumber += num[indx++];
						indx = 0;
						while (indx < k)
							recycledNumber += num[indx++];
					}

					if (!recycledNumber.equals("")) 
					{
						int recycledNum = Integer.parseInt(recycledNumber);

						if (recycledNum != i
								&& recycledNum <= B
								&& recycledNum >= A)
						{
						     RecycledPair r = new RecycledPair(i, recycledNum);	
						     if(recycledPairsEncountered.contains(r)==false)
						     {
						    	 recycledPairsEncountered.add(r);
						     	 count++;
						     }
						}
					}
				}
			}

			System.out.println("Case #" + (t + 1) + ":" + " " + count);
		}
	}

}
