#include <stdio.h>
 #include <unistd.h>

 int main() {
   int rc;
   printf( "ONE\n" );
   rc = fork();
   printf( "TWO\n" );
   if ( rc == 0 ) { printf( "THREE\n" ); }
   if ( rc > 0 )  { printf( "FOUR\n" );  }
   return 0;
 }