python -c commands on windows.

[Terry Reedy]

Manual says "-c <command>
     Execute the Python code in command. command can be one or more 
statements separated by newlines, with significant leading whitespace as 
in normal module code."

In Windows Command Prompt I get:
C:\Programs\Python33>python -c "a=1\nprint(a)"
   File "<string>", line 1
     a=1\nprint(a)
                 ^
SyntaxError: unexpected character after line continuation character
(Same if I remove quotes.)

How do I get this to work?

-- 
Terry Jan Reedy