import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashSet;

public class Recycled {
    public static void main(String[] args) {
        try {
            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
            int t = Integer.parseInt(br.readLine());
            for (int i = 0; i < t; i++) {
                String[] str = br.readLine().split(" ");
                int a = Integer.parseInt(str[0]);
                int b = Integer.parseInt(str[1]);
                System.out.println("Case #" + (i + 1) + ": " + find(a, b));
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static int find(int a, int b) {
        HashSet<Long> used = new HashSet<Long>();
        int digits = String.valueOf(a).length();
        if (digits == 1) return 0;
        for (int i = a; i <= b; i++) {
            int s = 10;
            int m = (int) Math.pow(10, digits-1);
            for (int j = 0; j < digits-1; j++) {
                int r = i % s;
                if (r < s/10) continue;
                int q = i / s;
                int rn = r * m + q;
                s *= 10; m /= 10;
                if (i != rn && rn >= a && rn <= b) {
                    long pp;
                    if (rn < i) pp = (long)rn << 30 | i;
                    else pp = (long)i << 30 | rn;
                    if (!used.contains(pp)) {
                        used.add(pp);
                    }
                }
            }
        }
        return used.size();
    }
}

package nl.bertjesapps.googlecodejam;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;

public class ProblemThree {
	
	private Set<String> results = new HashSet<>();
	
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		if (args.length == 1) {
			String fileName = args[0];
			ProblemThree problemOne = new ProblemThree();
			try {
				problemOne.solveFile(fileName);
			} catch (FileNotFoundException fnf) {
				System.out.println("File not found!");
				System.out.println(fnf.getMessage());
			} catch (IOException e) {
				System.out.println("Could not read file!");
			}
		} else {
			System.out.println("Need 1 argument!");
		}
	}

	private void solveFile(String fileName) throws IOException {
		StringBuilder output = new StringBuilder();
		File file = new File(fileName);
		FileReader fileReader = new FileReader(file);
		BufferedReader reader = new BufferedReader(fileReader);
		String numberOfCasesString = reader.readLine();
		int numberOfCases = Integer.parseInt(numberOfCasesString);
		for (int i = 1; i <= numberOfCases; i++) {
			output.append("Case #" + i + ": ");
			output.append(solveLine(reader.readLine()));
			output.append("\r\n");
		}
		//output.append(results.size());
		FileWriter writer = new FileWriter(fileName.replace(".in", ".out"));
		writer.write(output.toString());
		writer.close();
	}
	
	private String solveLine(String lineToBeSolved) {
		int result = 0;
		String[] parts = lineToBeSolved.split(" ");
		int startingNumber = Integer.parseInt(parts[0]);
		int endingNumber = Integer.parseInt(parts[1]);
		for (int i = startingNumber; i <= endingNumber; i++) {
			countRecycled(i, endingNumber);
		}
		result = results.size();
		results = new HashSet<>();
		return "" + result;
	}
	
	private void countRecycled(int source, int endingNumber) {
		StringBuilder builder = new StringBuilder();
		builder.append(source);
		for (int i = 1; i < builder.length(); i++) {
			String checkNumber = builder.substring(i) + builder.substring(0,i);
			int resultNumber = Integer.parseInt(checkNumber);
			if (resultNumber > source && resultNumber <= endingNumber) {
				results.add("" + source + "" + resultNumber);
			}
		}
	}
}


