#TempConvert.py
TempStr=input("你:")
if TempStr[-1]in['F','f']:
    C=(eval(TempStr[0:-1])-32)/1.8
    print("{:.2f}C".format(C))
elif TempStr[-1]in['C','c']:
    F=1.8*eval(TempStr[0:-1])+32
    print("{:.2f}F".format(F))
else:
    print("")