cin = gets.chomp!
abort unless cin
n = cin.to_i
abort unless 1 <= n && n <= 1000000

# x^q
def powm(x,q,mod=1000000007)
	y=1
	x=x%mod
	while (0<q)
		y=(y*x)%mod if q%2==1
		x=(x*x)%mod
		q/=2
	end
	y
end

# 組み合わせの数nCk
def combim(n,k,mod=1000000007)
	q=1
	k.downto(1){|rr|
		q=(((q*(n-rr+1))%mod)*powm(rr,mod-2,mod))%mod
	}
	q
end

# 重複組み合わせの数 nHr
def mcombim(n,r,mod=1000000007)
	combim(n-1+r,n-1,mod)
end

p mcombim(10,n)