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);
		}
	}
}
/**
 * Copyright 2012 Christopher Schmitz. All Rights Reserved.
 */

package com.isotopeent.codejam.lib.converters;

import com.isotopeent.codejam.lib.InputConverter;

public class MultiLineConverter implements InputConverter<Object[]> {

	private InputConverter<?>[] converters;
	private int count;

	private Object[] input;
	private int lineNumber;

	public MultiLineConverter(InputConverter<?> lineConverter, int count) {
		this.converters = new InputConverter<?>[count];
		this.count = count;
		for (int i = 0; i < count; i++) {
			converters[i] = lineConverter;
		}
	}

	public MultiLineConverter(InputConverter<?>[] lineConverters) {
		this.converters = lineConverters;
		this.count = lineConverters.length;
	}

	@Override
	public boolean readLine(String data) {
		if (lineNumber == 0) {
			input = new Object[count];
		}
		InputConverter<?> converter = converters[lineNumber];
		if (!converter.readLine(data)) {
			input[lineNumber++] = converter.generateObject();
		}

		if (lineNumber >= input.length){
			lineNumber = 0;
		}
		return lineNumber != 0;
	}

	@Override
	public Object[] generateObject() {
		return input;
	}

}
