Basic Output

std::cout is used to print output
  #include  <iostream>
  int  main()  {
     std::string  s  =  "Hello";
     int  i  =  42;
     double  d  =  1.3;
     char  c  =  '  ';
     std::cout  <<  s  <<  c  <<  i  <<  c  <<  d;
  }