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 recycling;

import java.io.File;
import java.io.FileNotFoundException;
import java.util.HashSet;
import java.util.Scanner;

public class Main {
	
	public static int lint(int n){
		if(n == 0)
			return 0;
		return 1 + lint(n / 10);
	}
	
	public static void permut(int[] tab){
		int l = tab.length;
		int temp = tab[l - 1];
		for(int i = l - 1; i > 0; i--){
			tab[i] = tab[i - 1];
		}
		tab[0] = temp;
	}
	
	public static int toInt(int[] tab){
		int res = 0;
		int m = 1;
		for(int i = tab.length - 1; i >= 0; i--){
			res += m * tab[i];
			m *= 10;
		}
		return res;
	}
	
	public static int[] toTab(int n){
		int[] res = new int[lint(n)];
		int temp = n;
		for(int i = res.length - 1; i >= 0; i--){
			res[i] = temp % 10;
			temp /= 10;
		}
		return res;
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		//String fileName = args[0];
		String fileName = "recycling/C-large.in";
		Scanner sC = null;
		try {
			sC = new Scanner(new File(fileName));
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
		int T = sC.nextInt();
		int A, B, l;
		
		HashSet<Integer> set = new HashSet<Integer>();
		
		for(int i = 0; i < T; i++){
			A = sC.nextInt();
			B = sC.nextInt();
			
			l = lint(A);
			
			int[] tab;
			
			int temp;
			
			int count = 0;
			
			for(int j = A; j < B; j++){
				set.clear();
				tab = toTab(j);
				for(int k = 0; k < l - 1; k++){
					permut(tab);
					temp = toInt(tab);
					//System.out.println(j + " " + temp);
					if(temp > j && temp <= B){
						set.add(temp);
						//System.out.println(j + " " + temp);
					}
				}
				count += set.size();
			}
			
			System.out.println("Case #" + (i + 1) + ": " + count);
		}

	}

}
