package it.simone.google.code.jam2012;

import java.util.HashSet;
import java.util.Set;

public class RecycledNumber implements GoogleCodeExercise {

	int a = 0;
	int b = 0;
	Set<Couple> distinctCouple = null;
	long maxTime = 0;

	private class Couple {
		int x = 0;
		int y = 0;

		public Couple(int x, int y) {
			this.x = x;
			this.y = y;
		}

		@Override
		public int hashCode() {
			final int prime = 31;
			int result = 1;
			result = prime * result + getOuterType().hashCode();
			result = prime * result + x;
			result = prime * result + y;
			return result;
		}

		@Override
		public boolean equals(Object obj) {
			if (this == obj)
				return true;
			if (obj == null)
				return false;
			if (getClass() != obj.getClass())
				return false;
			Couple other = (Couple) obj;
			if (!getOuterType().equals(other.getOuterType()))
				return false;
			if (x == other.x && y == other.y)
				return true;
			if (x == other.y && y == other.x)
				return true;
			return false;
		}

		private RecycledNumber getOuterType() {
			return RecycledNumber.this;
		}

	}

	@Override
	public String execute(String line) {
		int result = 0;

		String[] data = line.split(" ");
		a = Integer.parseInt(data[0]);
		b = Integer.parseInt(data[1]);
		initialize();

		int n = a;
		//
		while (n <= b) {
			result += analize(n);
			n++;
//			if (n % 1000 == 0)
//				System.out.println(n);
		}

		System.out.println(result);
		return "" + result;
	}

	@Override
	public void initialize() {
		distinctCouple = new HashSet<Couple>();
	}

	private int analize(int number) {
		String numString = "" + number;
		initialize();
		for (int i = 1; i < numString.length(); i++) {
			int m = shift(numString, i);
			if (a <= number && number < m && m <= b) {
				Couple couple=new Couple(number,m);
				if (!distinctCouple.contains(couple))
					distinctCouple.add(couple);
			}
		}
		return distinctCouple.size();
	}

	private int shift(String numString, int posx) {

		String result = null;
		result = "" + numString.substring(posx) + numString.substring(0, posx);

		return Integer.parseInt(result.toString());
	}

}

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


public class Main {

	public static void main(String[] args) throws IOException {
		Scanner scan = new Scanner(new File("input"));
		PrintWriter out =  new PrintWriter(new BufferedWriter
				   (new FileWriter("output")));
		int T = scan.nextInt();
		int compteur =1;
		while(T-->0){
			int A = scan.nextInt();
			int B=scan.nextInt();
			int nbDig = (A+"").length();
			int pui = 1;
			for(int i=0;i<nbDig-1;i++){
				pui*=10;
			}
			int rec = 0;
			int[] tab  = new int[nbDig-1];
			for(int i=A;i<B;i++){
				int u=i;
				for(int n=0;n<nbDig-1;n++){
					int mod = u%10;
					u = (u/10)+mod*pui;
					tab[n]=u;
					boolean deja = true;
					for(int j=0;j<n;j++){
						if(tab[j]==u){
							deja=false;
						}
					}
					if(u>i&&u<=B&&deja){
						rec++;
					}
				}
			}
			out.println("Case #"+compteur+": "+rec);
			compteur++;
		}
		out.close();
	}

}
