That’s what I got, but it makes an infinite loop. Please help. I should use all the varaible types from short to unsigned long long, but I have problem with 2 already. If you can show me how to do at least 2 of them, that would be awesome.

 {        printf("Enter a positive integer (or -ve integer to exit): ");       scanf("%d",&num);        while (num >= 0)       {              short f = 1;             for(int i = num; i > 1; i--  )             {                 f = f * i;              }         printf("Factorial of %d is: %hi\n",num,f);       }       i= 1,f=1;       while (num >= 0)       {              unsigned long long f = 1;             for(int i = num; i > 1; i--  )             {                 f = f * i;              }         printf("Factorial of %d is: %hi\n",num,f);         printf("Enter a positive integer (or -ve integer to exit): ");         scanf("%d",&num);       }              printf("Thank you for using my software :)");         }