import java.util.Scanner;

class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int t=sc.nextInt();
		int casos=1, a, b, n, m, cont;
		while(t!=0){
			a=sc.nextInt();
			b=sc.nextInt();
			if(a>b){
				int aux=a;
				a=b;
				b=aux;
			}
			System.out.printf("Case #%d: ",casos++);
			if(a==b){
				System.out.printf("%d\n",0);
			}else{
				cont=0;
				for(n=a;n<b;n++){					
					for(m=n+1;m<=b;m++){					
						if(isRecycled(n,m)) cont++;
					}
				}
				System.out.printf("%d\n",cont);
			}
			t--;
		}		
	}
	public static boolean isRecycled(int n1, int n2){
		String s1, s2, aux;
		s1 =  String.valueOf( n1 );
		s2 =  String.valueOf( n2 );		
		boolean r = false;		
		for(int i=0;i<s1.length();i++){
			aux="";
			aux=s1.substring(i,s1.length())+s1.substring(0,i);
//			System.out.println(aux);
			if(aux.equals(s2)){
				r=true;
				break;
			}
		}		
		return r;
	}
}

package com.google.codejam.recycle;

/**
 * Class to represent each test case.
 * It will hold details like test case no, input to be operated and TestResult.
 * @author Sushant Deshpande
 *
 */
public class TestCase {

    /**
     * Variable to hold value for test case number.
     */
    private int caseNo;

    /**
     * Variable to hold lower limit.
     */
    private int low;

    /**
     * Variable to hold upper limit.
     */
    private int high;

    /**
     * Variable holding test case result.
     */
    private TestResult output;

    /**
     * Constructor for creating TestCase with case no.
     * @param caseNo int
     * @param low int
     * @param high int
     */
    public TestCase(final int caseNo, final int low, final int high) {
        this.caseNo = caseNo;
        this.low = low;
        this.high = high;
    }

    /**
     * Settter method for TestResult.
     * @param output TestResult
     */
    public final void setOutput(final TestResult output) {
        this.output = output;
    }

    public int getHigh() {
        return high;
    }

    public int getLow() {
        return low;
    }

    /**
     * Method to format the test output for printing in the report.
     * @return String formatted output for the given input.
     */
    public final String printTestResult() {
        StringBuilder resultBuilder = new StringBuilder("Case #");
        resultBuilder.append(caseNo).append(": ");
        resultBuilder.append(output.getTestOutput()).append("\n");
        return resultBuilder.toString();
    }
}