Feet = int(input("Enter The Length:"))
Unit = input("Enter Unit:")
Inches = Feet * 12
Centimetres = Feet * 30.48
Metres = Feet * 0.308
if(Unit == "Inches"):
    print("Length in Inches=", Inches)
if(Unit == "Centimetres"):
    print("Length in Centimetres=", Centimetres)
if(Unit == "Metres"):
    print("Length in Metres=", Metres)
else:
    print("invalid Unit")
