Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
\
p
r
o
d
i
=
1
t
o
n
o
f
i
!
n
!
i
n
-
i
Math Input
Natural Language
Math Input
