SyntaxError: Missing parentheses in call to 'print'

[sofret]

Am new to python, a new concept which i love.... i started 3days back.... and am using a text book to teach myself.... i got to a section of the textbook and i saw a new concept which i love.but i entered the code the way it was entered in the text book.... but the program did not run...here is the code, and the result i was getting.......

>>> x = input("x:")
x:50
>>> y = input("y:")
y:50
>>> print x*y
SyntaxError: Missing parentheses in call to 'print'. Did you mean print(x*y)?