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);
		}

	}
}

package sebastianco;

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


public class RecycledNumbers {

	public static void main(String[] args) throws Exception {

		BufferedReader reader = null;
		BufferedWriter writer = null;
		
		try {
			reader = new BufferedReader(new FileReader(new File(args[0])));
			writer = new BufferedWriter(new FileWriter(new File(args[1])));
			
			final int nrOfTestCases = Integer.valueOf(reader.readLine());
			
			String lineSepartor = "";
			for (int i = 1; i <= nrOfTestCases; i++) {
				writer.write(lineSepartor);
				writer.write(String.format("Case #%d: %d",
						i, new TestCase(reader.readLine()).computePairs()));
				lineSepartor = "\n";
			}
	
		} finally {
			if (writer != null) {
				writer.flush();
				writer.close();
			}
			reader.close();
		}
				
	}
	
	public static class TestCase {
		
		private int a;
		private int b;
		
		public TestCase(String caseLine) {
			String[] tokens = caseLine.split(" ");
			a = Integer.parseInt(tokens[0]);
			b = Integer.parseInt(tokens[1]);
		}
		
		public int computePairs() {
			
			Set<String> distinctPairs = new HashSet<String>();
			
			final String strB = String.valueOf(b);
			final int maxRotations = strB.length() - 1; 
			
			int recycledPairs = 0;
			for (int i = a; i < b; i++) {
				String strI = String.valueOf(i); // System.out.println("==" + strI);
				
				StringBuilder number = new StringBuilder(strI);				
				for (int j = 1; j <= maxRotations; j++) {
					rotate(number);
					String strNumber = number.toString();
					if (strI.compareTo(strNumber) < 0
							&& strNumber.compareTo(strB) <= 0) {
						if (distinctPairs.add(strI + strNumber)) {
							recycledPairs++; // System.out.println(strNumber);
						}
					}
				}
				
			}
			
			return recycledPairs;
		}
		
		private void rotate(StringBuilder number) {
			char c = number.charAt(number.length() - 1);
			for (int i = number.length() - 1; i > 0; i--) {
				number.setCharAt(i, number.charAt(i-1));
			}
			number.setCharAt(0, c);
		}
		
	}
	
	
}
