/*
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 * and open the template in the editor.
 */

package Happy;
import java.io.*;
import java.math.*;
import java.lang.*;
import java.util.*;
import java.util.Arrays.*;
import java.io.BufferedReader;
//import java.io.IOException;
//import java.io.InputStreamReader;
//import java.io.PrintWriter;
//import java.util.StringTokenizer;

/**
 *
 * @author ipoqi
 */
public class Happy {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        new Happy().haha();
    }

    public void haha() {
        BufferedReader in = null;
        BufferedWriter out = null;
        try{
            in = new BufferedReader(new FileReader("C-large.in"));
            out = new BufferedWriter(new FileWriter("LLL.out"));
            int T = Integer.parseInt(in.readLine());
            System.out.println("T="+T);

            //LinkedList<Integer> mm = new LinkedList<Integer>();
            //mm.add(new LinkedList<Integer>());
           //int[][] mm;
           //for(int ii=0;ii<mm.length;ii++){
           //     mm[0][ii] = 1;
           //}


            for(int i=0;i<T;i++){
                String[] line = in.readLine().split(" ");
                int A = Integer.parseInt(line[0]);
                int B = Integer.parseInt(line[1]);
                //System.out.print(" A = "+A+"\n");
                //System.out.print(" B = "+B+"\n");

                int ans = 0;

                
                for(int j=A;j<B;j++){
                    int n=j;
                    if(n>=10){
                        String N = Integer.toString(n);
                        int nlen = N.length();
                        List<Integer> oks = new ArrayList<Integer>();
                        for(int k=0;k<nlen-1;k++){
                            String M = "";
                            for(int kk=1;kk<=nlen;kk++){
                                 M = M + N.charAt((k+kk)%nlen);
                            }
                            int m = Integer.parseInt(M);
                            //System.out.print(" N = "+N+"\n");
                            //System.out.print(" M = "+M+"\n");

                            if(m>n && m<=B) {
                                boolean isNewOne = true;
                                for(int kkk=0;kkk<oks.size();kkk++){
                                    //System.out.print(" KKK = "+oks.get(kkk)+"\n");
                                    if(m==oks.get(kkk)){
                                        isNewOne = false;
                                    }
                                }
                                if(isNewOne){
                                    //System.out.print(" N = "+N+"\n");
                                    //System.out.print(" M = "+M+"\n");
                                    oks.add(m);
                                    ans++;
                                }
                            }
                        }
                    }
                }
                out.write("Case #"+(i+1)+": "+ans+"\n");
                System.out.print("Case #"+(i+1)+": "+ans+"\n");
            }
            in.close();
            out.close();
        }catch(Exception e){
            e.printStackTrace();
            try{
                in.close();
                out.close();
            }catch(Exception e1){
                e1.printStackTrace();
            }
        }
        System.out.print("YES!\n");
    }

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

public class Qual2012 {

	public static void lame() {
		try {
			FileReader fr = new FileReader("input.txt");
			BufferedReader reader = new BufferedReader(fr);
			PrintWriter writer = new PrintWriter("output.txt");

			HashMap<String, String> dictionary = new HashMap<String, String>();
			dictionary.put("a", "y");
			dictionary.put("b", "h");
			dictionary.put("c", "e");
			dictionary.put("d", "s");
			dictionary.put("e", "o");
			dictionary.put("f", "c");
			dictionary.put("g", "v");
			dictionary.put("h", "x");
			dictionary.put("i", "d");
			dictionary.put("j", "u");
			dictionary.put("k", "i");
			dictionary.put("l", "g");
			dictionary.put("m", "l");
			dictionary.put("n", "b");
			dictionary.put("o", "k");
			dictionary.put("p", "r");
			dictionary.put("q", "z");
			dictionary.put("r", "t");
			dictionary.put("s", "n");
			dictionary.put("t", "w");
			dictionary.put("u", "j");
			dictionary.put("v", "p");
			dictionary.put("w", "f");
			dictionary.put("x", "m");
			dictionary.put("y", "a");
			dictionary.put("z", "q");
			dictionary.put(" ", " ");
			int numCases = Integer.parseInt(reader.readLine());

			for (int i = 1; i <= numCases; i++) {
				String sentence = reader.readLine();
				String newSentence = "";
				for (char c : sentence.toCharArray()) {
					char[] temp = new char[1];
					temp[0] = c;
					newSentence += dictionary.get(new String(temp));
				}
				writer.println("Case #" + i + ": " + newSentence);
			}

			writer.close();
			fr.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public static boolean canMatch(int score, int target) {
		if (score == 0)
			return target <= 0;
		if (score == 1 || score == 2)
			return target <= 1;
		if (score % 3 == 0) {
			return score / 3 >= target;
		}
		return ((score / 3) + 1 >= target);
	}

	public static boolean canMatchSpecial(int score, int target) {
		if (score == 0)
			return target <= 0;
		if (score == 1)
			return target <= 1;
		if (score == 2)
			return target <= 2;
		if (score % 3 == 1)
			return (score / 3 + 1) >= target;
		return (score / 3 + 2) >= target;
	}

	public static void dance() {
		try {
			FileReader fr = new FileReader("input.txt");
			BufferedReader reader = new BufferedReader(fr);
			PrintWriter writer = new PrintWriter("output.txt");

			int numCases = Integer.parseInt(reader.readLine());
			for (int i = 1; i <= numCases; i++) {
				StringTokenizer line = new StringTokenizer(reader.readLine(),
						" ");
				int numDancers = Integer.parseInt(line.nextToken());
				int numSurprising = Integer.parseInt(line.nextToken());
				int bestScore = Integer.parseInt(line.nextToken());
				List<Integer> scores = new LinkedList<Integer>();
				for (int j = 0; j < numDancers; j++)
					scores.add(Integer.parseInt(line.nextToken()));
				int count = 0;
				for (Integer score : scores) {
					if (canMatch(score, bestScore))
						count++;
					else if (canMatchSpecial(score, bestScore)
							&& numSurprising > 0) {
						numSurprising--;
						count++;
					}
				}
				writer.println("Case #" + i + ": " + count);
			}

			writer.close();
			fr.close();

		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public static void recycle() {
		try {
			FileReader fr = new FileReader("input.txt");
			BufferedReader reader = new BufferedReader(fr);
			PrintWriter writer = new PrintWriter("output.txt");
			
			int numCases = Integer.parseInt(reader.readLine());
			for (int i = 1; i <= numCases; i++) {
				StringTokenizer line = new StringTokenizer (reader.readLine(), " ");
				int A = Integer.parseInt(line.nextToken());
				int B = Integer.parseInt(line.nextToken());
				int count = 0;
				for (int k = A; k <= B; k++) {
					if (k < 10) {
						continue;
					}
					String temp = "" + k;
					String cmp = "" + k;
					int length = temp.length();
					temp = temp.substring(length-1) + temp.substring(0, length - 1);
					while (!temp.equals(cmp)) {
						int cycle = Integer.parseInt(temp);
						if (A <= cycle && cycle <= B)
							count++;
						temp = temp.substring(length-1) + temp.substring(0, length - 1);
					}
				}
				writer.println ("Case #" + i + ": " + count/2);
			
				
			}
			
			writer.close();
			fr.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public static void main(String[] args) {
		// lame();
		// dance();
		recycle();
		
	}
}