C :

#include<stdio.h>
int main()
{
	int x,y,min=369,mx,my;
	for(x=0;x<=369/69;x++)
	{
		y=(369-x*69)%39;
		if(y<min)
		{
			min=y;
			mx=x;
			my=(369-x*69)/39;
		}
	}
	printf("%d %d %d\n",mx,my,min);
	return 0;
}

C++ :

#include<iostream>
using namespace std;
int main()
{
  int a=369,b;
  for(int i=1;i<=7;++i)
  {  if((369-39*i)%69<=a)
     {a=(369-39*i)%69;b=i;}
  }
  cout<<(369-39*b)/69<<" "<<b<<" "<<a<<endl;
}