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;
	}

}

import java.util.List;
import java.util.Vector;

public class DataModel extends Thread {

	class Data {
		private int no;
		private List<Integer> pairs;

		public Data(int no) {
			this.no = no;
			pairs = new Vector<Integer>();
		}

		public void addToList(int no) {
			pairs.add(no);
		}

		public int getPairs() {
			int p = 0;
			for (Integer i : pairs) {
				if (i != no)
					p++;
			}
			return p;
		}

		public boolean isInList(int i) {
			return pairs.contains(i);
		}

	}

	private int lowBound;
	private int highBound;
	private int caseNo;
	private Data[] range;
	private int output;
	private boolean stateCalc;

	public DataModel(String input, int caseNo) {
		this.caseNo = caseNo;
		String[] temp = input.split(" ");
		stateCalc = false;
		try {
			lowBound = Integer.parseInt(temp[0]);
			highBound = Integer.parseInt(temp[1]);
		} catch (Exception e) {
			e.printStackTrace();
			System.exit(1);
		}
		range = new Data[highBound - lowBound + 1];
		for (int i = lowBound; i <= highBound; i++) {
			range[i - lowBound] = new Data(i);
		}
	}

	@Override
	public void run() {
		char[] split;
		int splitOn;
		for (int i = lowBound; i <= highBound; i++) {
			split = (i + "").toCharArray();
			if (split.length == 1) {
				output = 0;
				break;
			}
			for (int j = 0; j < split.length; j++) {

				splitOn = splitOnPos(split, j);
				if (splitOn <= highBound && splitOn >= lowBound && splitOn != i) {
					if (!range[i - lowBound].isInList(splitOn)) {
						range[i - lowBound].addToList(splitOn);
					}
				}
			}
		}
		calcOut();

		stateCalc = true;
	}

	private void calcOut() {
		for (int i = 0; i < range.length; i++) {
			for (int j = 0; j < range[i].getPairs(); j++)
				output++;
		}
		output /= 2;
	}

	private int splitOnPos(char[] arr, int splitpos) {
		StringBuilder sb = new StringBuilder();
		for (int i = splitpos; i < arr.length; i++) {
			sb.append(arr[i]);
		}
		for (int i = 0; i < splitpos; i++) {
			sb.append(arr[i]);
		}
		return Integer.parseInt(sb.toString());
	}

	public boolean isDone() {
		return stateCalc;
	}

	public void getOutput() {
		System.out.println("Case #" + caseNo + ": " + output);
	}
}