CF1047A Little C Loves 3 I

Little C loves number «3» very much. He loves all things about it. Now he has a positive integer $ n $ . He wants to split $ n $ into $ 3 $ positive integers $ a,b,c $ , such that $ a+b+c=n $ and none of the $ 3 $ integers is a multiple of $ 3 $ . Help him to find a solution.

A single line containing one integer $ n $ ( $ 3 \leq n \leq 10^9 $ ) — the integer Little C has.

Print $ 3 $ positive integers $ a,b,c $ in a single line, such that $ a+b+c=n $ and none of them is a multiple of $ 3 $ . It can be proved that there is at least one solution. If there are multiple solutions, print any of them.