#!/usr/bin/ruby
require'zlib'
S=DATA.read
M=10**9+7
BSE=5000000
def f(n)
	if n>=M
		0
	elsif false
		r=1
		n.times{|i|
			r=r*(i+1)%M
			p r if (i+1)%BSE==0
		}
		r
	else
		d,n=n.divmod BSE
		r=Zlib.inflate(S.unpack('m')[0]).split.map(&:to_i)[d]
		n.times{|i|
			r=r*(d*BSE+i+1)%M
		}
		r
	end
end
k=gets.to_i
if k%2>0
	p 0
	exit
end
p f(k)*f(k/2).pow(M-2,M)**2%M
__END__
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