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

public class C {

	static HashSet p = new HashSet();
	static int low;
	static int high;
	int count = 0;

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int no = sc.nextInt();

		for (int i = 1; i <= no; i++) {

			p.clear();
			low = sc.nextInt();
			high = sc.nextInt();

			for (int l = low; l <= high; l++) {
				recycle(l);
			}
			System.out.println("Case #" + i + ": " + p.size());

		}
	}

	public static void recycle(int no) {

		String s = Integer.toString(no);
		for (int i = 0; i < s.length(); i++) {
			String rec = s.substring(i) + s.substring(0, i);
			int r = Integer.parseInt(rec);
			if (r != no && r >= low && r <= high) {
				int min = Math.min(r, no);
				int max = Math.max(r, no);
				String a = Integer.toString(min) + "" + Integer.toString(max);
				p.add(a);

			}
		}

	}
}

package fixjava;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.util.Map.Entry;

public abstract class Filter<T> {

	abstract boolean accept(T item);

	public static <U> ArrayList<U> list(Iterable<U> collection, Filter<U> filter) {
		ArrayList<U> filtered = new ArrayList<U>();
		for (U item : collection)
			if (filter.accept(item))
				filtered.add(item);
		return filtered;
	}

	public static <U> HashSet<U> set(Set<U> set, Filter<U> filter) {
		HashSet<U> filtered = new HashSet<U>();
		for (U item : set)
			if (filter.accept(item))
				filtered.add(item);
		return filtered;
	}

	public static <K, V> HashMap<K, V> mapKeys(Map<K, V> map, Filter<K> keyFilter) {
		HashMap<K, V> filtered = new HashMap<K, V>();
		for (Entry<K, V> ent : map.entrySet())
			if (keyFilter.accept(ent.getKey()))
				filtered.put(ent.getKey(), ent.getValue());
		return filtered;
	}

	public static <K, V> HashMap<K, V> mapValues(Map<K, V> map, Filter<V> valueFilter) {
		HashMap<K, V> filtered = new HashMap<K, V>();
		for (Entry<K, V> ent : map.entrySet())
			if (valueFilter.accept(ent.getValue()))
				filtered.put(ent.getKey(), ent.getValue());
		return filtered;
	}
}
