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

class B
{
	public static void main(String[] args) 
	{
		try
		{
			BufferedReader br = new BufferedReader(new FileReader("B.in"));
			PrintWriter pw = new PrintWriter(new FileWriter("B.out"));
			int X = Integer.parseInt(br.readLine());

			for(int i=0; i<X; i++)
			{
				String[] S = br.readLine().split(" ");
				int A = Integer.parseInt(S[0]);
				int B = Integer.parseInt(S[1]);
				int R = 0;

				int x = 1;
				int n = 0;
				while(A/x > 0) {
					n++;
					x *= 10;
				}

				for(int j=A; j<B; j++) {
					Set<Integer> seen = new HashSet<Integer>();
					for(int k=1; k<n; k++) {
						int p1 = j % (int)Math.pow(10, k);
						int p2 = (int) Math.pow(10, n-k);
						int p3 = j / (int)Math.pow(10, k);
						int y = p1*p2 + p3;
						
						if(j < y && !seen.contains(y) && y <= B) {
							seen.add(y);
							R++;
						}
					}
				}

				pw.printf("Case #%d: %d\n", i+1, R);
				pw.flush();
			}
		}
		catch(Exception e)
		{ 
			e.printStackTrace();
		}
	}
}

package qualifying;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;

public class C {

		public static void main(String[] args) throws Exception {
			
			String fs_in = "/Users/ctynan/Downloads/test.txt";
			String fs_out = "/Users/ctynan/Documents/C-out.txt";
			String line;
			BufferedReader br = new BufferedReader(new FileReader(fs_in));
			BufferedWriter bw = new BufferedWriter(new FileWriter(fs_out));
			
			line=br.readLine();
			line=line.toLowerCase();
			int tst = Integer.valueOf(line);
			
			for(int ii=0;ii<tst; ii++) {
				line=br.readLine();
				String output = "Case #" + Integer.toString(ii+1) +": ";
				String[] tem = line.split(" ");
				int A = Integer.valueOf(tem[0]);
				int B = Integer.valueOf(tem[1]);
				int cnt=0;
				
				for(int i=A; i<B; i++) {
					String s = Integer.toString(i);
					int[] got = new int[12];
					int goti=0;
					
					for(int j=0; j<s.length(); j++) {
						String t = s.substring(j)+s.substring(0, j);
						int tm = Integer.valueOf(t);
						if(tm>i&&tm<=B) {
							boolean have = false;
							for(int l=0;l<goti;l++) 
								if(got[l]==tm) { have=true; break; }
							if(!have) {
								got[goti]=tm;
								goti++;
								cnt++;
							}
						}
					}
				}
				bw.write(output);
				bw.write(Integer.toString(cnt));
				if(ii<tst-1) bw.write('\n');
			}
			bw.close();
			return;
		}
}
