#include<stdio.h>
#include<conio.h>
main()
{
unsigned long serialnumber,rc1,rc2,rc3,rc4 ;
clrscr() ;
printf("Key Generator MMViewer 1.02 by flag eRRatum\n") ;
printf("Visit our Page at http:\\\\all.at\\ekh\n") ;
printf("Type your Serial Number : ") ;
scanf("%lu",&serialnumber) ;
printf("Type your Register Code [complete with the - ]: ") ;
scanf("%lu-%lu-%lu-%lu",&rc1,&rc2,&rc3,&rc4) ;

serialnumber+=rc4 ;
serialnumber=~serialnumber+1 ;
serialnumber=serialnumber^(rc1*100000000+rc2*10000+rc3) ;

printf("This is your key to register : %lu",serialnumber) ;
printf("\nThanx for using me !!! :)") ;
}