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.cases.competition.qualification_round_2012;

import gcj.main.Case;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.util.HashSet;
import java.util.Set;

public class CaseC implements Case{
	
	private int caseNum;
	private long min;
	private long max;
	private long solution;
	

	@Override
	public void init(int caseNum, BufferedReader br) throws Exception {
		String strLine;
		{
			//caseNum
			this.caseNum = caseNum;
			System.out.println("Act case: " + this.caseNum);
		}
		{
			//param 1, min max
			if ((strLine = br.readLine()) != null){
				String[] p = strLine.split(" ");
				min = Long.parseLong(p[0]);
				max = Long.parseLong(p[1]);
			}else{
				throw new Exception("Wrong input");
			}
		}
	}

	
	@Override
	public void solve() throws Exception {
		solution=0l;
		for(long nIter = min; nIter<max; nIter++){
			String nValue = "" + nIter;
			Set<Long> mPairs = new HashSet<Long>();
			for(int i=0; i<nValue.length()-1; i++){
				String nRecicled = nValue.substring(i+1) + nValue.substring(0, i+1);
				long m = Long.parseLong(nRecicled);
				if(m>nIter && m<=max && !mPairs.contains(m)){
					solution++;
					mPairs.add(m);
				}
			}
		}
	}
	
	
	@Override
	public void generateOutput(BufferedWriter bw, boolean needBR) throws Exception {
		bw.write("Case #" + this.caseNum + ": " + this.solution);
		if(needBR){
			bw.newLine();
		}
	}


}
