ASCII码排序

#include
using namespace std;
int main()
{

char a[3];
while (cin>>a[0]>>a[1]>>a[2])
{
	if (int(a[0]) <int(a[1]))
	{
		a[3] = a[0];
		a[0] = a[1];
		a[1] = a[3];
	}
	if (int(a[1]) < int(a[2]))
	{
		
		a[3] = a[1];
		a[1] = a[2];
		a[2] = a[3];
	}
	if (int(a[0]) <int(a[1]))
	{
		a[3] = a[0];
		a[0] = a[1];
		a[1] = a[3];
	}
		cout << a[2] << " " << a[1] << " " << a[0] << endl;
}
return 0;

}