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.

小 C 非常喜欢数字「3」，他对一切与 3 相关的事物都情有独钟。

现在他有一个正整数 $n$。他想把 $n$ 拆分成 $3$ 个正整数 $a,b,c$，使得 $a+b+c=n$，且这 $3$ 个整数中没有一个是 $3$ 的倍数。请你帮他找出一组解。

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

一行，包含一个整数 $n$（$3 \leq n \leq 10^9$）——即小 C 拥有的整数。

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.

在一行中输出 $3$ 个正整数 $a,b,c$，使得 $a+b+c=n$，且其中任意一个数都不是 $3$ 的倍数。

可以证明至少存在一个解。如果存在多个解，输出任意一个即可。