#include <stdio.h>
#define LOWER 0
#define UPPER 300
#define STEP 20
main()
{
int fahr;
for (fahr = UPPER; fahr >= LOWER; fahr = fahr - STEP)
printf("%3d %6.1f\n", fahr, (5.0 / 9.0) * (fahr - 32));
}