#include <stdio.h>

int main() {
  double fahr, celcius;
  double lower, upper, step;

  lower = 0;
  upper = 300;
  step = 20;

  fahr = lower;
  printf("%6c %8c\n", 'F', 'C');
  while (fahr <= upper) {
    celcius = 5.0/9 * (fahr - 32);
    printf("%6.2f %8.2f\n", fahr, celcius);
    fahr = fahr + step;
  }
}