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());
	}

}

package jpt.codejam;

import java.io.PrintStream;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

public class Codejam2012 {
	static void solve_Qual_B() throws Exception {
		Scanner in = new Scanner(System.in);
		PrintStream out = System.out;
		
		int cases = in.nextInt();
		for (int nCase = 1; nCase <= cases; ++nCase) {
			int N = in.nextInt();
			int S = in.nextInt();
			int p = in.nextInt();
			int res = 0;
			for (int i=0; i<N; ++i) { 
				int t = in.nextInt();

				int max1 = (t+2)/3;
				int max2 = (t+4)/3;
				if (t<=1 || t>=29) max2 = -1;
				
				if (max1 >= p) ++res;
				else if (max2 >= p && S > 0) {
					++res;
					--S;
				}
			}
			out.printf("Case #%d: %d\n", nCase, res);
		}
	}

	
	static void solve_Qual_C() throws Exception {
		Scanner in = new Scanner(System.in);
		PrintStream out = System.out;
		
		int[] ten = new int[8];
		ten[0] = 1;
		for (int i=1; i<ten.length; ++i) ten[i] = ten[i-1]*10;
		
		
		int cases = in.nextInt();
		for (int nCase = 1; nCase <= cases; ++nCase) {
			int A = in.nextInt();
			int B = in.nextInt();
			int res = 0;
			Set<Integer> ms = new HashSet<Integer>();
			for (int n=A; n<=B; ++n) {
				int d = 1;
				for (int aux=10; aux<=n; aux*=10) ++d;
				ms.clear();
				for (int k=1; k<d; ++k) {
					int q = n % ten[k];
					if (q<ten[k-1]) continue;
					int p = n / ten[k];
					int m = q * ten[d-k] + p;
					if (A<=m && B>=m && n!=m && !ms.contains(m)) ++res;
					ms.add(m);
				}
			}
			out.printf("Case #%d: %d\n", nCase, res/2);
		}
	}
	
	public static void main(String[] args) throws Exception {
		//solve_Qual_B();
		solve_Qual_C();
		//solve_1A_A();
		//solve_1A_B();
		//solve_1A_C();
	}
}
