Why does it keep asking me to add new lines to separate multiple inputs? What does it mean?

Question

#include <iostream>
using namespace std;

int main ()
{
int a;
//How old are you?
cin>> a;

return 0;
}

Answer 1

Don't double post :( Reported.

Answer 2

Didnt mean to

Answer 3

Reported?

Answer 4

Kay. Reported for removal.