#include <stdio.h>
int
main()
{
#ifdef _WIN32
printf
(
"Hey Geek it seems that"
"you are working on a Windows OS.\n"
);
#elif __APPLE__
printf
(
"Hey Geek it seems that you"
"are working on a Mac OS.\n"
);
#elif __linux__
printf
(
"Hey Geek it seems that you"
"are working on a Linux OS.\n"
);
#elif TARGET_OS_EMBEDDED
printf
(
"Hey Geek it seems that you"
"are working on an iOS embedded OS.\n"
);
#elif TARGET_IPHONE_SIMULATOR
printf
(
"Hey Geek it seems that you"
"are working on an iOS simulator OS.\n"
);
#elif TARGET_OS_IPHONE
printf
(
"Hey Geek it seems that you"
"are working on an iPhone OS.\n"
);
#elif TARGET_OS_MAC
printf
(
"Hey Geek it seems that you"
"are working on a MAC OS.\n"
);
#elif__ANDROID__
printf
(
"Hey Geek it seems that you"
"are working on an android OS.\n"
);
#elif __unix__
printf
(
"Hey Geek it seems that you"
"are working on a unix OS.\n"
);
#elif _POSIX_VERSION
printf
(
"Hey Geek it seems that you"
"are working on a POSIX based OS.\n"
);
#elif __sun
printf
(
"Hey Geek it seems that you"
"are working on a Solaris OS.\n"
);
#elif __hpux
printf
(
"Hey Geek it seems that you"
"are working on a HP UX OS.\n"
);
#elif BSD
printf
(
"Hey Geek it seems that you"
"are working on a Solaris OS.\n"
);
#elif __DragonFly__
printf
(
"Hey Geek it seems that you"
"are working on a DragonFly BSD OS.\n"
);
#elif __FreeBSD__
printf
(
"Hey Geek it seems that you"
"are working on a FreeBSD OS.\n"
);
#elif __NetBSD__
printf
(
"Hey Geek it seems that you"
"are working on a Net BSD OS.\n"
);
#elif __OpenBSD__
printf
(
"Hey Geek it seems that you"
"are working on an Open BSD OS.\n"
);
#else
printf
(
"Sorry, the system are"
"not listed above.\n"
);
#endif
return
0;
}