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 gcj2012;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;

public class RecycledNumbers {

	private static final class IntPair {
		Integer a, b;
		IntPair(Integer a,Integer b) {
			this.a = a;
			this.b = b;
		}
		@Override
		public boolean equals(Object obj) {
			IntPair other = (IntPair) obj;
			return a.equals(other.a) && b.equals(other.b);
		}
		@Override
		public int hashCode() {
			return a.hashCode() * b.hashCode();
		}
		
	}
	
	private static Map<IntPair, Object> beenThereDoneThat;
	
	public static void main(String[] args) throws IOException {
		Scanner scn = new Scanner(new File("C-large.txt"));
		PrintWriter output = new PrintWriter(new FileWriter("out2.txt"));
		int size = scn.nextInt();
		for (int i = 1; i <= size; i++) {
			int total = 0;
			int a = scn.nextInt();
			int b = scn.nextInt();
			for (int j = a; j <= b; j++) {
				total += count(j, b);
			}
			output.write("Case #" + i + ": " + total);
			output.write('\n');
		}
		output.close();
	}
	
	private static int count(Integer curr, Integer max) {
		String currString = curr.toString();
		int currSize = currString.length();
		if (currSize == 1) {
			return 0;
		}
		beenThereDoneThat = new HashMap<IntPair, Object>();
		int localCount = 0;
		//i is start index of end part, which is moving to the front
		for (int i = 1; i < currSize; i++) {
			String newCurr = currString.substring(i) + currString.substring(0, i);
			int newCurrInt = Integer.valueOf(newCurr);
			if (newCurrInt > curr && newCurrInt <= max) {
				IntPair pair = new IntPair(curr, newCurrInt);
				if (beenThereDoneThat.get(pair) == null) {
					beenThereDoneThat.put(pair, new Object());
					localCount++;
				}
				
//				if (localCount == 1) {					
//					System.out.print(curr);
//				}
//				System.out.print(" "+newCurrInt);
			}
		}
//		if (localCount !=0) {			
//			System.out.println();
//		}
		return localCount;
	}
	
	
}
