import std.stdio, std.string, std.conv; import std.range, std.algorithm, std.array; void main() { long n; scan(n); if (n <= 5 || n == 7) { writeln(-1); } else { long m = n - 3; // m が2のべき乗 <=> m & (m-1) == 0 if (m & (m-1)) { writeln(3, ' ', m); } else { writeln(5, ' ', n - 5); } } } void scan(T...)(ref T args) { import std.stdio : readln; import std.algorithm : splitter; import std.conv : to; import std.range.primitives; auto line = readln().splitter(); foreach (ref arg; args) { arg = line.front.to!(typeof(arg)); line.popFront(); } assert(line.empty); } void fillAll(R, T)(ref R arr, T value) { static if (is(typeof(arr[] = value))) { arr[] = value; } else { foreach (ref e; arr) { fillAll(e, value); } } }