package codejam;

import java.util.*;
import java.io.*;

public class RecycledNumbers {
	public static void main(String[] args) throws IOException {
		BufferedReader in = new BufferedReader(new FileReader("in.txt"));
		PrintWriter out = new PrintWriter(new File("out.txt"));
		
		int T = Integer.parseInt(in.readLine());
		for (int t = 1; t <= T; ++t) {
			String[] parts = in.readLine().split("[ ]+");
			int A = Integer.parseInt(parts[0]);
			int B = Integer.parseInt(parts[1]);
			
			int cnt = 0;
			for (int i = A; i < B; ++i) {
				String str = String.valueOf(i);
				int n = str.length();
				String res = "";
				Set<Integer> seen = new HashSet<Integer>();
				for (int j = n - 1; j > 0; --j) {
					res = str.substring(j) + str.substring(0, j);
					int k = Integer.parseInt(res);
					if (k > i && k <= B) {
						//System.out.println("(" + i + ", " + k + ")");
						if (!seen.contains(k)) {
							++cnt;
							seen.add(k);
						}
					}
				}
			}

			out.println("Case #" + t + ": " + cnt);
		}
		
		in.close();
		out.close();
		System.exit(0);
	}
}

import java.io.*;
import java.math.BigInteger;
import java.util.*;

public class GC {
	String s  = null;
	String[] sp = null;
	
	
	
	public void run() throws Exception{
		
		BufferedReader br = new BufferedReader(new FileReader("C-small-attempt0.in"));
		
		BufferedWriter bw = new BufferedWriter(new FileWriter("OUTPUT.txt"));
		s = br.readLine();
		int T = Integer.parseInt(s);
		
		
		int t = 1;
		while(t <= T){
			s = br.readLine();
			sp = s.split(" ");
			int ans = 0;
			int a = Integer.parseInt(sp[0]);
			int b = Integer.parseInt(sp[1]);
			
			if(a < 10){
				a = 10;
			}
			while(a < b){
			
				String sa = Integer.toString(a);
				
				Set<String> set = new HashSet<String>();
				for(int i = 1; i < sa.length(); i++){
					String f = sa.substring(0, i);
					String ba = sa.substring(i);
					String ns = ba + f;
					if(set.contains(ns)){
						continue;
					}
					set.add(ns);
					int nb = Integer.parseInt(ns);
					if(nb > a && nb <= b){
						ans++;
					}
				}

				a++;
			}
			
			bw.write("Case #" + t + ": " + ans +  "\n");

			t++;
		}
		
		bw.close();
	}
	

	
	

	public static void main(String[] args) throws Exception {
		GC b = new GC();
		b.run();
	}

}
