1047A - Little C Loves 3 I

#include<bits/stdc++.h>

using namespace std;

int main()

{

   int n,a,b,c;

   cin>>n;

    if(n%3==0)

    {

     a =1;

     b=1;

     c=n-2;

    }

    else{

        a=1;

        b=1;

        c=n-2;

        if(c%3==0)

        {

          c--;

          b++;

        }

}

   cout<<a<<" "<<b<<" "<<c;

}