func main() var x: int :: cui@input().toInt(&) func f(n: int): int if(n <= 1) ret n end if var factors: []int :: math@primeFactors(n) var res: int :: 1 var cnt: int :: 0 var prev: int :: factors[0] for i(0, ^factors) if(i = ^factors) break i end if if(factors[i] <> prev) do prev :: factors[i] do res :* (cnt + 1) do cnt :: 0 end if do cnt :+ 1 end for do res :* (cnt + 1) ret n - res end func {高度合成数である2162160の正の約数は320個} func score(n: int, x: int): int ret(f(n) - f(x - n)).abs() end func var ca: int :: x / 2 var min: int :: score(ca, x) for i(0, 160) var a: int :: ca - i if(a < 0) break i end if var v: int :: score(a, x) if(v < min) do min :: v end if end for for i(160, -160, -1) var a: int :: ca - i if(a < 0 | x - a < 0) skip i end if var v: int :: score(a, x) if(v = min) do cui@print("\{a} \{x - a}\n") end if end for end func