Celsius to Fahrenheit or vice versa

t = input()
sign = t[-1]
t = int(t[0:-1])
if sign == 'C' or sign == 'c':
    t_f = round(t * (9/5) + 32)
    print(str(t)+'C','is', str(t_f),'in','Fahrenheit')
elif sign == 'F' or sign == 'f':
    t_c = round((t - 32) * (5/9))
    print(str(t) + 'F','is', str(t_c),'in','Celsius')