using namespace std;
#define MAX(x,y,z) ( ( x = (x>y)?x:y)>z? x:z)
int main()
{
int a,b,c;
cout<<"輸入三個整數:"<<endl;
cin>>a>>b>>c;
cout<<"最大數為:";
cout<<MAX(a,b,c)<<endl;
return 0;
}