Thread: some questions about scanf

I wrote something like this:

Code:

int main () {

   char input[5];

   scanf ("%c" , input);
   scanf ("%c" , input);
   scanf ("%c" , input);
   scanf ("%c" , input);

   return 0;

}

I have 4 scanf there, how come after running the program, it only allows me to input 2 times?