import std.stdio;
import std.string;

struct Human
{
 string name;
 ushort age;
};

void print_list(Human[] human_list)
{
 foreach(human; human_list)
   {
    writeln(human.name);
    writeln(human.age);
   }
  writeln("");
}

void add_human(Human[] human_list)
{
  ushort age;
  string name;

  write("Name: ");
  readf(" %s", &name);

  write("Age: ");
  readf(" %u", &age);

  Human tmp_human = {name, age};
  human_list ~= tmp_human;
}

int main()
{
  Human[] human_list;
  char choice;

   for(;;)
    {
      writeln("A)dd New Human.");
      writeln("P)rint Human List.");
      writeln("Q)uit.");

      write("Input: ");
      readf(" %c", &choice);

      switch(choice)
       {
         case('A'):
         case('a'): add_human(human_list);

         case('P'):
         case('p'): print_list(human_list);

         case('Q'):
         case('q'): return 0;

         default: break;
      }
    }
}