text: //Compile with g++ (ver. 8.1.0)
  //Task : Find the sum of the numbers totally divisible by 5.
  //Input : int
  //Output : int
  
  #include <iostream>
  
  using namespace std;
  
  
  int main (int argc , char* argv[])
  {
      int number;
  
      int summ = 0;
      int temp = 0;
  
      cout << "Enter a number : ";
      cin >> number;
      
  
      if(number < 0)
      {
          while (temp >= number)
          {
              summ += temp;
              temp -= 5; 
          }
          
      }
      else
      {
          while (temp <= number)
          {
              summ += temp;
              temp += 5; 
          }
      }
      cout << "Summ = " << summ;
      return 0;
  }