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 gcj;

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

public class RecycledNumbers {
	private String solve(Scanner in) {
		HashSet<Integer> set = new HashSet<Integer>();
		int A = in.nextInt();
		int B = in.nextInt();
		
		int result = 0;
		int numberLen = ((Integer)A).toString().length();
		
		int multiple = 1;
		for (int tt = 1; tt < ((Integer)A).toString().length(); tt++)
			multiple *= 10;
		
		for (int n = A; n < B; n++) {
			if (n / multiple >= 10) multiple *= 10;

			int m = n;
			int d = m % 10;
			m /= 10;
			
			int counter = 0;
			while (counter < numberLen - 1) {
				m += multiple*d;
				if (m > n && m <= B && !set.contains(m)) set.add(m);
				d = m % 10;
				m = m / 10;
				counter++;
			}
			
			result += set.size();
			set.clear();
		}
		return "" + result;
	}
	
	
	/**
	 * @param args
	 * @throws FileNotFoundException 
	 */
	public static void main(String[] args) throws FileNotFoundException {
	    Scanner in = new Scanner(new File("C:\\Users\\User\\Desktop\\dane\\data.in"));//C:\\Users\\User\\workspace\\GoogleCodeJam\\src\\gcj\\data"));//"));
	    PrintWriter out = new PrintWriter("C:\\Users\\User\\Desktop\\dane\\output");//C:\\Users\\User\\workspace\\GoogleCodeJam\\src\\gcj\\output");//"C:\\Users\\User\\Desktop\\dane\\output");
		
	    int T = in.nextInt();
	    in.nextLine();
	
        for (int i = 0; i < T; i++) {
            String s = "Case #" + (i + 1) + ": " + new RecycledNumbers().solve(in);
            out.println(s);
            System.out.println(s);
        }
        out.close();

	}
}
