task 2_3

#include <stdio.h>
int main ()
{
    double x,ans;
    
    while(scanf("%lf",&x) != EOF)
    {
        ans = 9.0/5.0*x+32.0;
        printf("摄氏度c=%.2f时，华氏度f=%.2f\n",x,ans);
        printf("\n");
    }

    return 0;
}