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;
	}

}

public class Recycle extends CodeJam{

    public Recycle() {
        super("C-small-attempt0");
    }

    public static void main(String[] args) {
        //long t = System.currentTimeMillis();
        new Recycle().run();
        //System.out.println(System.currentTimeMillis() - t);
    }
    
    private int[][] nm = new int[2000001][10];
    
    public void init() {
        //long t = System.currentTimeMillis();
        int k10 = 10;
        for (int n = 1 ; n < 2000001; n++){
            int[] mar = new int[10];
            if (n == k10){
                k10 *= 10;
            }
            int d = 10;
            int a = n / d;
            for (int i = 0 ; a > 0 ; i++, d *= 10, a /= 10){
                int b = n % d;
                int m = (k10/d) * b + a;
                if (m > n){
                    boolean add = true;
                    for (int exists : mar){
                        if (exists == m){
                            add = false;
                            break;
                        }
                    }
                    if (add) {
                        mar[i] = m;
                    }
                }
                
            }
            nm[n] = mar;
        }
        //System.out.println(System.currentTimeMillis() - t);
    }

    @Override
    protected String solve() {
        int A = scanner.nextInt();
        int B = scanner.nextInt();
        int count = 0;
        for (int n = A ; n < B; n++) {
            for (int m : nm[n]) {
                if (m > 0 && m <= B){
                    count++;
                }
            }    
        }
        return count + "";
    }
}
