Board Thread:Anything Goes/@comment-31479721-20170514155725/@comment-31479721-20170514222116

By that logic, 10 could also be 10x1, and 9 could be 9x1, and switching would result in 9x1 and 10x1, which equal 9 and 10, the sum of which is 19, so n would be 19 in that case.