local ffi = require 'ffi'
local C = ffi.C
ffi.cdef 'int printf(const char *, ...);'

C.printf("%lu\n", (function (n)
	local m = n/2ULL
	m = n%2==0 and (m+2)*m or (m+3)*m+1
	return m%1000007
end)(io.stdin:read("*n")))