#include <stdio.h>
int main()
{
float F;
float ret;
scanf("%f", &F);
ret = (F-273.15)*1.8+32;
printf("%f", ret);
return 0;
}

#include <stdio.h>
int main()
{
float F;
float ret;
scanf("%f", &F);
ret = (F-273.15)*1.8+32;
printf("%f", ret);
return 0;
}