import java.util.*;
import java.io.*;

public class recycled_numbers {
	public static void main(String[]a) throws Exception{
		
		Scanner f = new Scanner(new File(a[0]));
		int result=0;
		int A,B;
		String n,m;
		HashSet<String> s=new HashSet<String>();
		
		int T=f.nextInt();	//T total case count
		for (int t=1; t<=T;t++){//for each case t
			
			s.clear();
			result=0;				//reset
			A=f.nextInt();B=f.nextInt();	//get values for next case
			
			if (A==B)result=0;//remove case not meeting problem limits 
			else{
				for(int i=A;i<=B;i++){//for each int in range
					n=Integer.toString(i);
					m=new String(n);
					//System.out.println(n);
					for (int j=1;j<n.length();j++){//move each digit to the front & test
						m = m.substring(m.length()-1)+m.substring(0,m.length()-1);
						if(m.matches("^0+[\\d]+")!=true &&
								Integer.parseInt(m)<=B &&
								Integer.parseInt(n)<Integer.parseInt(m)){
							s.add(new String(n+","+m));
							//result++;
							//System.out.println(" matched: "+m);
						}
						
					}
				}
				result = s.size();
			}

			//display output
			System.out.println("Case #" + t + ": " + result);
		}
	}
}
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;



public class Recycled extends TemplateClass {

	public Recycled() {
	}

	public Recycled(String nombreficheroEntrada, String nombreFicheroSalida) throws Exception {
		super(nombreficheroEntrada, nombreFicheroSalida);
	}
	
	protected void procesaTestCase() throws Exception {

		// Variables
		int testCase = 0;
		ArrayList lista = new ArrayList();
		long a;
		long b;
		long casos;
		
		for (testCase = 0; testCase < testCases; testCase++) {
			a = sc.nextInt();
			b = sc.nextInt();
			
			casos = numeroCasos(a,b);
			bw.write("Case #" + (testCase + 1) + ": " + casos + "\n");		
		} 
		bw.close();
	}
	
	private long numeroCasos(long a, long b){
		long casos = 0;
//		long medio = (long)(Math.ceil(((b - a)/2)) + a);
		char c[];
		long arrayCombinaciones[];
		long temp = 0;
		long base = 0;
		
		for(long i = a; i <= b; i++){
			base = i;
			c = (Long.toString(i)).toCharArray();
			//comprueba numero
//			for (int j = 0; j < c.length; j++) {
				arrayCombinaciones = traeCombinaciones(c);
				siguiente:
				for (int k = 0; k < arrayCombinaciones.length; k++) {
					temp = arrayCombinaciones[k];
					if (temp > base){
						base = temp;
					}else{
						continue siguiente;
					}
					if (temp <= b){
						casos += 1;
					}
				}
//			}
		}
		return casos;
	}
	
	private long[] traeCombinaciones(char c[]){
		long array[] = new long[c.length];
		char temp[] = c;
		char temp2[] = c;
		int k = 0;
		String s;
		s = String.valueOf(temp);
		array[0] = Long.parseLong(s);
		
		for (int i = 1; i < array.length; i++) {
			temp = new char[c.length];
			for (int j = 0; j < c.length; j++) {
				if (j == 0){
					k = c.length - 1;
				}else{
					k = j - 1;
				}
				temp[k] = temp2[j];
			}
			temp2 = temp;
			array[i] = Long.parseLong(String.valueOf(temp));
		}
		Arrays.sort(array);
		return array;
	}
}
