text: #include <stdio.h>
  
  int main() {
    float C;
    int F, lower = 100, upper = 500, step = 50;
  
    for (F = lower; F <= upper; F += step) {
      C = (5 / 9.0) * (F - 32);
      printf("%d Fahr is %.2f Celsius\n", F, C);
    }
    return 0;
  }
  