Guessing Game in C

//Guessing Game in C

#include <stdio.h>

int main()

{
         int mybday = 20; //declare variable to be guessed
         int guess;    //declare variable to store guessed date
         int max = 31;     //declare variable to test for invalid input
         int min = 1;   //declare variable to test for invalid input
            clrscr();
         printf("Try to guess the day of my Birthday: "); //display the intro and directions
          scanf("%d",&guess);   //`get the users guess and store it in the variable guess

         if (guess == mybday)
                 {
                 printf("You Win!!");    //print you win if guess is correct
         }
         else if (guess < min)
                 {
                 printf("Thats NOT A DATE!!"); //print `Error for invalid input
         }
         else if (guess > max)
     {
                 printf("There isn't %d days in a month!",guess);  //print Error for invalid input
         }
         else if (guess > mybday)
         {
                 printf("Too High!");  //print too high if guess is above answer
         }
         else if (guess < mybday)
                 {
                 printf("Too Low!"); //print too low if guess is below answer
         }
                 else
         {
                 printf("Try again!!");    //Print try again if guess if all else is not true (not possible)
         }

         return 0;
}