#include <stdio.h>

void main()

{
  int fahr, celsius;
  int lower, upper, step;
  
  lower = 0;
  upper = 300;
  step = 20;
  
  fahr = lower;
  printf("摄氏温度转华氏温度\n");
      while (fahr <= upper) {
          celsius = 5*(fahr-32)/9;
          printf("%3d\t%6d\n", fahr, celsius);
          fahr = fahr + step;
  }
}