import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;
import java.util.Set;

public class CopyOfCopyOfMain {

	static int ndigits(int n) {
		return (int) (Math.log10(n) + 1);
	}

	static int rot(int n, int dig) {
		return (int) ((n % 10) * Math.pow(10, dig - 1)) + (int) (n / 10);
	}

	public static void main(String[] args) throws FileNotFoundException {
		String file = "C-large";
		Scanner in = new Scanner(new File(file + ".in"));
		PrintWriter out = new PrintWriter(new File(file + ".out"));

		int T = in.nextInt();
		for (int t = 1; t <= T; t++) {
			int A = in.nextInt();
			int B = in.nextInt();

			int c = 0;
			int[] list = new int[ndigits(B)];
			numbers: for (int i = A; i <= B; i++) {
				int digs = ndigits(i);
				int rot = i;
				int pairs = 0;

				Arrays.fill(list, -1);
				list[0] = i;

				digits: for (int j = 1; j <= digs + 1; j++) {

					rot = rot(rot, digs);
					if(rot < i)
						continue;

					if (A <= rot && rot <= B) {
						for (int k = 0; k < j; k++) {
							if (list[k] == rot) {
								continue digits;
							}
						}
						pairs++;
						list[j] = rot;
					}
				}

				//c += pairs * (pairs + 1) / 2;
				c += pairs ;
				// c+=digs;
			}
			out.println("Case #" + t + ": " + c);
		}

		in.close();
		out.close();
	}
}

package codejam;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;

/**
 * ´ÓÎÄ±¾¶ÁÈ¡ÊäÈë
 * @author Administrator
 *
 */
public class InOutTool extends ArrayList<String> {
	private String inPath ;
	private String outPath;
	public String outText(String path){
		this.outPath = path;
		return outText();
	}
	public String outText(){
		StringBuffer sb = new StringBuffer();
		PrintWriter out = null;
		try {
			out = new PrintWriter(new File(outPath).getAbsoluteFile());
			for(String s:this){
				out.println(s);
				sb.append(s);sb.append("\n");
			}
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			if(null!=out){
				out.close();
			}
		}
		return sb.toString();
	}
	public String readText(String inPath){
		StringBuffer sb = new StringBuffer();
		BufferedReader in = null;
		try {
			in = new BufferedReader(new FileReader(new File(inPath).getAbsoluteFile()));
			String s;
			while((s = in.readLine()) != null){
				s = s.trim();
				add(s);//Ã¿Ò»ÐÐ×÷ÎªArrayListµÄÒ»¸öÔªËØ
				sb.append(s);sb.append("\n");
			}
		}catch (FileNotFoundException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			if(null!=in){
				try {
					in.close();
				} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
			}
		}
		return sb.toString();
	}
	public InOutTool(String inPath,String outPath){
		this.inPath = inPath;this.outPath = outPath;
		readText(inPath);
		if((size()!=0)&&get(0).equals("")) remove(0);
	}
}
