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 static java.lang.System.in;
import static java.lang.System.out;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Scanner;

public class Recycled {

	
	public static void main(String[] args) throws IOException {
		Scanner asdf = new Scanner(in);
		Scanner file = new Scanner(new File("C-large.in"));
		PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("C-large.out")));
		int t = file.nextInt();
		
		for(int r=1; r<=t; r++){
			run(r, file, out, asdf);
		}
		
		out.close();
	}
	
	public static void run(int r, Scanner file, PrintWriter out, Scanner asdf){
		
		int a = file.nextInt();
		int b = file.nextInt();
		int count = 0;
		ArrayList<Integer> list = new ArrayList<Integer>();
		
		/*for(int s=1; s<=Integer.toString(b).length()/2+1; s++)
			for(int x=a; x<=b; x++)
				for(int y=b; y>=x; y--)
					if(!list.contains(x*y) && x!=y && x==rotateDig(y, s)){
						count++;
						list.add(x*y);
						//System.out.println(x+" "+y);
					}*/
		
		int l = Integer.toString(b).length();
		for(int z=a; z<=b; z++){
			for(int s=1; s<=l; s++){
				int temp = rotateDig(z,s);
				if(temp>z && temp<=b){
					if(list.isEmpty())
						count++;
					else if(!list.isEmpty() && !(temp==list.get(list.size()-1)))
						count++;
					list.add(temp);
					//System.out.println(rotateDig(z,s));
				}
			}
		}
		
		
		//System.out.println("Case #"+r+": "+count);
		out.println("Case #"+r+": "+count);
	}
	

	
	public static int rotateDig(int n, int shift){
		
		String s = Integer.toString(n);
		String t = "";
		
		t = s.substring(shift);
		t += s.substring(0,shift);
		
		return Integer.parseInt(t);
	}


}
