dragon

#include<bits/stdc++.h>
using namespace std;
int main(){
    int head=3 , tail =3 ;
    int * a= new int [9];
    for (int i=0;i<9;i++){
        cin >> a[i];
    }
    for (int i=0;i<9;i++){
        int x=a[i];

        if( (x!=1 && x!=2 && x!=3 && x!=4) || tail<0 || head<0  ){
            cout<<"invalid attack"<<endl;
            return 0;
        }
        if ( x== 1 ){

        }
        else if ( x==2 ){
            tail++;
        }
        else if (x==4  ){
            head++;
            tail-=2;
        }
        else if ( x==3 ){
            head-=2;
        }
    }
    if ( head <= 0 && tail<=0 )cout<<"You slayed the Dragon.";
    else cout<<"You die.";
    return 0;
}