title: Count Of Pairs Satisfying The Given Condition
signature: class Solution {
  
      public int CountOfPairsSatisfyingTheGivenCondition(int a, int b) {
test_code: using System;
  using System.Numerics;
  using System.Diagnostics;
  using System.Collections.Generic;
  using System.Linq;
  using System.Text;
  using System.Security.Cryptography;
  using System.Web.UI;
  using System.Web.Script.Serialization;
  
  // SOLUTION CODE
  // ============================================
  PLACEHOLDER_CODE_BODY
  
  // TESTING CODE 
  // ============================================
  namespace EvaluatePrediction {
      class TestRunner {
          public bool ValidateSolution(int actual, int expected){
              return new JavaScriptSerializer().Serialize(actual) == new JavaScriptSerializer().Serialize(expected);
          }
  
          public string driver(int a, int b, int expected){
              try{
                PLACEHOLDER_CLS_NAME solution_cls = new PLACEHOLDER_CLS_NAME();
                int pred_result = solution_cls.PLACEHOLDER_FN_NAME(a, b); 
                if (ValidateSolution(
                      pred_result,
                      expected)){
                  return "PASSED";
                }
                return "FAILED";
              } 
              catch (Exception exception_obj)
              {
                return exception_obj.GetType().FullName;
              }
          }
          static void Main(string[] args) {
              TestRunner runner = new TestRunner();
              String result;
              result = runner.driver(
                  31, 91, 
                  31
              );
              Console.WriteLine(string.Format(
                  "TEST-0...{0}",
                  result)
              );result = runner.driver(
                  72, 85, 
                  72
              );
              Console.WriteLine(string.Format(
                  "TEST-1...{0}",
                  result)
              );result = runner.driver(
                  23, 49, 
                  23
              );
              Console.WriteLine(string.Format(
                  "TEST-2...{0}",
                  result)
              );result = runner.driver(
                  42, 32, 
                  42
              );
              Console.WriteLine(string.Format(
                  "TEST-3...{0}",
                  result)
              );result = runner.driver(
                  13, 7, 
                  0
              );
              Console.WriteLine(string.Format(
                  "TEST-4...{0}",
                  result)
              );result = runner.driver(
                  93, 5, 
                  0
              );
              Console.WriteLine(string.Format(
                  "TEST-5...{0}",
                  result)
              );result = runner.driver(
                  33, 32, 
                  33
              );
              Console.WriteLine(string.Format(
                  "TEST-6...{0}",
                  result)
              );result = runner.driver(
                  94, 76, 
                  94
              );
              Console.WriteLine(string.Format(
                  "TEST-7...{0}",
                  result)
              );result = runner.driver(
                  60, 60, 
                  60
              );
              Console.WriteLine(string.Format(
                  "TEST-8...{0}",
                  result)
              );result = runner.driver(
                  11, 26, 
                  11
              );
              Console.WriteLine(string.Format(
                  "TEST-9...{0}",
                  result)
              );
          }
      }
  }
  
source_py: def count_of_pairs_satisfying_the_given_condition(a, b):
      s = str(b)
      i = 0
      while (i < len(s)):
          if (s[i] != '9'):
              break
          i += 1
      result = 0
      if (i == len(s)):
          result = (a * len(s))
      else:
          result = (a * (len(s) - 1))
      return result
source_cpp: int count_of_pairs_satisfying_the_given_condition(int a, int b) {
    string s = to_string ( b );
    int i;
    for ( i = 0;
    i < s . length ( );
    i ++ ) {
      if ( s [ i ] != '9' ) break;
    }
    int result;
    if ( i == s . length ( ) ) result = a * s . length ( );
    else result = a * ( s . length ( ) - 1 );
    return result;
  }