Use the \n code to generate a new line. : Escape sequence « Development « C++ Tutorial

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2. Development
3. Escape sequence

#include <iostream> 
using namespace std; 
 
int main() 
{ 
  cout << "one\n"; 
  cout << "two\n"; 
  cout << "three"; 
  cout << "four"; 
 
  return 0; 
}

one
two
threefour"