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);
		}

	}
}

/**
 *
 * @author amit
 */
import java.io.*;
import java.util.HashSet;
import java.util.Set;
//import java.util.Arrays;
//import java.math.BigInteger;

public class GCJ {

	BufferedReader rin;
	BufferedWriter wout;
	int numCases;

	public String calculate(long A, long B) {
		long count =0;
		for(long i=A;i<B;i++){
			String s = Long.toString(i);
			int Bl = Long.toString(B).length();
			int Al = s.length();
			//System.out.println("\n"+s);
			//System.out.println("\n" + Al + " " + Bl);
			Set<Long> set = new HashSet<Long>();
			for(int k=0;k<=Bl-Al;k++) {

				//System.out.println("\n"+s);

				
				for(int j=0;j<s.length();j++){
					//System.out.println("\nS: " + s);
					s = s.substring(s.length()-1) + s.substring(0, s.length()-1);
					//System.out.println("\nS new: " + s);
					long num = Long.parseLong(s);
					if (num>=A && num<=B && i<num) {
						if(!set.contains(num)) {
							set.add(num);
							//System.out.println("\nCounted: " + i + " " + num);
							count++;
						}
					}

				}
				//System.out.println("\nS newnew: " + s);
				s = "0" + s;
			}
		}
		return Long.toString(count);
	}

	public String getNextInput() {
		try {
			String line = rin.readLine();
			String[] aVars = line.split(" ");
			long A = Long.parseLong(aVars[0]);
			long B = Long.parseLong(aVars[1]);
			return calculate(A,B);

		} catch (IOException e) {
			System.out.println("File Error! Could not read line from file");
		}
		return null;
	}

	public void writeNextOutput(String s) {
		try {
			wout.write(s);
			wout.write("\n");
		} catch (IOException e) {
			System.out.println("Error! Could not write to the file!");
		}
	}

	public GCJ(String s1, String s2) {
		try {
			rin = new BufferedReader(
					new FileReader(s1));
			wout = new BufferedWriter(new FileWriter(s2));
			numCases = Integer.parseInt(rin.readLine());

			for(int i=1; i <= numCases; i++){
				System.out.println("case#" + i);
				String sout = getNextInput();
				sout = "Case #" + Integer.toString(i) + ":" + " " + sout;
				writeNextOutput(sout);
				//System.out.println("case#" + i);
			}
			rin.close();
			wout.close();
		} catch (IOException e) {
			System.out.println("File error");
			System.exit(0);
		}
	}

	public static void main(String[] args) {/*
        if (args.length!=2) {
        System.out.println("Enter input file!");
        System.exit(0);
        }*/
		GCJ a = new GCJ("infile.txt", "out.txt");
	}
}
