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 source;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;
import java.util.Set;
import java.util.TreeSet;

public class RecycledNumbers {

	/**
	 * @param args
	 */
	public static void main(String[] args) throws IOException{
		Scanner scan = new Scanner(new File(""));
		BufferedWriter bw = new BufferedWriter(new FileWriter(""));
		
		int testCases = new Integer(scan.nextLine());
		Set<String> pairs = null;
		
		for(int i=0; i < testCases; i++){
			String[] nums = scan.nextLine().split(" ");
			int min = new Integer(nums[0]);
			int max = new Integer(nums[1]);
			pairs = new TreeSet<String>();
			
			int testNum = min;
			while(testNum <= max){
				getRecycled(testNum, pairs, min, max);
				++testNum;
			}
			bw.write("Case #"+(i+1)+": "+pairs.size()+"\n");
		}
		bw.flush();
		bw.close();
	}
	
	public static void getRecycled(int testNum, Set<String> pairs, int min, int max){
		int rec = 0;
		String number = Integer.toString(testNum);
		
		StringBuilder sb = new StringBuilder("");
		for(int i=1; i < number.length(); i++){
			sb.append(number.substring(i)).append(number.substring(0, i));
			try{
				rec = new Integer(sb.toString());
				if(testNum != rec && min <= rec && rec <= max && 
						!pairs.contains(testNum+"-"+rec) && !pairs.contains(rec+"-"+testNum)){
					pairs.add(testNum+"-"+rec);
				}
			} catch(NumberFormatException e){}
			sb.delete(0, sb.length());
		}
	}

}
