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 java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;


public class Recycle {
	public static void main(String...args) throws IOException  {
		//the result file
		PrintWriter writer = new PrintWriter(new FileWriter("c:\\jam\\C-large.out"));
		//reading input file the file
		BufferedReader reader = new BufferedReader(new FileReader("c:\\jam\\C-large.in"));
		//Reading cases number
		int count = Integer.parseInt(reader.readLine());
		
		//Iterating over the cases
		for(int k=1;k<count+1;k++){
			String g = reader.readLine();
			String[] tab = g.split("\\s");
			int A = Integer.parseInt(tab[0]);
			int B = Integer.parseInt(tab[1]);
			int res = 0;
			
			for(int n=A;n<B;n++){
				String str = "" + n;
				String origin = str;
				int size = str.length();
				String old = null;
				int c = 0;
				List<String> list = new ArrayList<String>();
				for(int i=0;i<size;i++){
					char first = str.charAt(0);
					str = str.substring(1).concat(first + "");
					boolean test = false;
					for(String s:list){
						if(s.equals(str)) test = true;
					}
					if(test) continue;
					list.add(str);
					c = Integer.parseInt(str);
					int size2 = String.valueOf(c).length();
					if(c>n && c<=B && size==size2){
						res++;
					}
					old = str;
				}
			}
			
			writer.println("Case #" + k + ": " + res);
		}
		
			reader.close();
			writer.close();
	}
}
