#include <stdio.h> 



int main(void) { 
#define ATMTA

#ifdef ATMTA
  printf("YOBA1\n");
  printf("YOBA1\n");
#endif

#undef ATMTA

#ifdef ATMTA
  printf("YOBA2\n");
  printf("YOBA2\n");
#endif
  return 0; 
}