import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;


public class Main {

//	static int MAX = 10000;
	static int MAX = 2000000;
	static Object[] All = new Object[MAX+1];
	
	static int size( int x ) {
		if(x>999999) return 7;
		if(x>99999)  return 6;
		if(x>9999)   return 5;
		if(x>999)    return 4;
		if(x>99)     return 3;
		if(x>9)      return 2;
		return 1;
	}
	static int[] rotate( int value ) {
		List<Integer> result = new ArrayList<Integer>();
		int[] V = new int[8];
		int s = size(value);
		int x = value;
		
		for(int i=s-1;i>=0;i--) {
			V[i] = x%10;
			x /=10;
		}
		int rot;
		for(int i=1; i<s; i++) {
			if(V[i]!=0){
				rot=0;
				for(int j=0,ii=i;j<s; j++,ii=(ii+1)%s){
					rot=rot*10+V[ii];
				}
				if(rot>value && !result.contains(rot))
					result.add(rot);
			}
		}
		if( result.isEmpty() )
			return null;
		int[] r = new int[result.size()];
		for(int i=0; i<r.length; i++)
			r[i]=result.get(i);
		return r;
	}
	
	static void precalculate() {
		for(int i=1; i<=MAX; i++){
			All[i] = rotate(i);
		}
	}
	static int solve( Scanner in ) {
		int A, B, sol=0;
		
		A = in.nextInt();
		B = in.nextInt();

		for( int i=A; i<=B; i++) {
//			List<Integer> result = rotate(i);
			if( All[i]!=null ) {
				for(int value: (int[])All[i] ) {
					if( value <= B )
						sol++;
				}
			}
		}

		return sol;
	}
	
	public static void main ( String args[] ) {
		int T; 
		Scanner in = new Scanner(System.in);
		T = in.nextInt();
		int cnt=0;
		int sol;
		precalculate();
		for( cnt=1; cnt<=T; cnt++ ) {
			sol = solve( in );
			System.out.printf("Case #%d: %d\n", cnt, sol);
		}

	}
}

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


public class Q3 {
	public static Problem[] probs;

	static class Problem {
		public int A;
		public int B;
	}
			
	public static void main(String[] args) {
		long time = System.currentTimeMillis();
		String inputFile = args[0];
		parseFile(inputFile);
		try {
			BufferedWriter bw = new BufferedWriter(new FileWriter(inputFile + ".out"));
			for (int i=0; i<probs.length; i++) {
				System.out.println(i);
				String output = solveProblem(probs[i]);
				bw.write("Case #" + (i+1) + ": " + output + "\n");
			}
			bw.flush();
			bw.close();
		} catch (IOException ex) {
			ex.printStackTrace();
		}
		System.out.println("Execution time: " + (System.currentTimeMillis()-time)/1000.0);
	}
			
	
	private static int shift(int foo, int places) {
		String fooStr = "" + foo;
		String shiftStr = fooStr.substring(fooStr.length()-places) + fooStr.substring(0, fooStr.length()-places);
		return Integer.parseInt(shiftStr);
	}
	
	private static String solveProblem(Problem p) {
		int pairs = 0;
		if (p.A<10 && p.B<10) {
			return "0";
		}
		for (int n=p.A; n<p.B; n++) {
			int shiftNum = 1;
			int testM = shift(n, shiftNum);
			while (testM!=n) {
				if (testM>n && testM<=p.B) {
					pairs++;
				}
				shiftNum++;
				testM = shift(n, shiftNum);
			}
		}
		return "" + pairs;
	}

	public static void parseFile(String inputFile) {
		BufferedReader br;
		try {
			br = new BufferedReader(new FileReader(inputFile));
			String line = br.readLine();
			probs = new Problem[Integer.parseInt(line)];
			line = br.readLine();
			for (int i=0; i<probs.length; i++) {
				probs[i] = new Problem();
				String[] pieces = line.split(" ");
				probs[i].A = Integer.parseInt(pieces[0]);
				probs[i].B = Integer.parseInt(pieces[1]);
				line = br.readLine();
			}
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}
