text: #include <iostream>
  
  int main()
  {
  	int number_ = 1;
  	int counter_ = 2;
  
  	while (true) {
  		while (number_%counter_ == 0) {
  			if (counter_ == 20) {
  				std::cout << number_ << std::endl;
  				return 0;
  			}
  			counter_++;
  		}
  		number_++;
  		counter_ = 1;
  	}
  	
  }
  