For you

What is the output of this program and why?

#include <stdio.h>

void f(void) {
  printf("hax my anus\n");
  fflush(stdout);
  f();
}

int main(void) {
  f();
  return 0;
}

>>65
The point wasn't the turing machine, but that you may have different results for every run, there isn't a well-defined entry and exit point, which is a requirement for determinism, therefore the program is ultimately indeterministic.