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 me.stapel.kai.google.codejam2012.quali;

import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.util.SortedSet;
import java.util.TreeSet;

import me.stapel.kai.google.codejam2012.quali.C.Pair;

public class ProblemC {

	private static final String NL = System.getProperty("line.separator");

	public ProblemC() {
		// nothing to do here yet
	}
	
	public static void main(String[] args) {
		ProblemC problemC = new ProblemC();
		
		problemC.processFile("in/C-large.in", "out/C-large.txt");
	}

	private Object processFile(String inFileName, String outFileName) {
		Object obj = new Object();
		
		File inFile = new File(inFileName);
		File outFile = new File(outFileName);

		String line = "";
		int T = 1;

		OutputStreamWriter output;
		BufferedReader br;
		try {
			br = new BufferedReader(new FileReader(inFile));
			output = new OutputStreamWriter(new BufferedOutputStream(
					new FileOutputStream(outFile)), "8859_1");

			line = br.readLine();
			
			// skipping first line
			line = br.readLine();

			while (line != null) {
				String[] split = line.split(" ");

				int A = Integer.parseInt(split[0]);
				int B = Integer.parseInt(split[1]);

				int numPairs = calcNumPairs(A, B);
				
				output.write("Case #" + T + ": " + numPairs + NL);
				System.out.println("Case #" + T + ": " + numPairs);
				
				line = br.readLine();
				T++;
			}
			
			
			output.flush();
			output.close();

		} catch (FileNotFoundException e) {
			System.err.println("File " + inFile.getName() + " not found. Nothing processed.");
			e.printStackTrace();
		} catch (IOException e) {
			System.err.println("Error when reading file " + inFile.getName() + " or writing file " + outFile.getName() + ".");
			e.printStackTrace();
		}
		
		return obj;
	}
	
	private int calcNumPairs(int A, int B) {
		SortedSet<Pair> pairs = new TreeSet<Pair>();
		
		for(int i = A; i <= B; i++){
			int[] n = toArray(i);

			calcRecycledPairs(n, B, pairs);
		}
		
		return pairs.size();
	}

	private int calcRecycledPairs(int[] n, int B, SortedSet<Pair> pairs) {
		int num = 0;
		int[] m = new int[n.length];
		int ni,mi;
		
		for (int i = 1; i < n.length; i++) {
			for(int j = 0; j < n.length-i; j++) {
				m[j+i] = n[j];
			}
			for(int j = n.length-i; j < n.length; j++) {
				m[j-n.length+i] = n[j];
			}
			
			ni = fromArray(n);
			mi = fromArray(m);
			
			if(mi <= B && ni < mi && isValidM(m)) {
				num++;
				pairs.add(new Pair(ni, mi));
//				System.out.println("("+ni+", "+mi+")");
			}
				
		}
		
		return num;
	}

	private boolean isValidN(int[] n) {
		int tmp = n[0];
		for (int i = 1; i < n.length; i++) {
			if(n[i] != tmp)
				return true;
			tmp = n[i];
		}
		return false;
	}

	private boolean isValidM(int[] m) {
		if(fromArray(m) < Math.pow(10,m.length-1))
			return false;
		return true;
	}

	private int[] toArray(int i) {
		int digits = (int)Math.ceil(Math.log10(i+1));
		int[] arr = new int[digits];
		
		for(int c = 1; c<=digits;c++) {
			arr[digits-c] = i % 10;
			i = i/10;
		}
		
		return arr;
	}
	
	private int fromArray(int[] arr) {
		int i = 0;
		for (int j = 0; j < arr.length; j++) {
			i = 10*i+arr[j];
		}
		return i;
	}
}
