#include <iostream>

using namespace std;
int ab= 1000;
class bankAccount{
    private:
        int accountNo;
        double balance;
    public:
        bankAccount(int y){balance=y; accountNo = ab; ab=ab+1;cout<<"constructing"<<endl;}
        bankAccount(){balance=100; accountNo = ab; ab=ab+1;cout<<"constructing"<<endl;}
        ~bankAccount(){cout<<"destructing"<<endl;}
        void setBalance(int x){balance=x; cout<<"Account Number: "<<accountNo<<" New Balance: "<<balance<<endl;}
        void getBalance(){cout<<"Account Number: "<<accountNo<<" Balance: "<<balance<<endl;}
};

int main(){
    bankAccount ac1;
    ac1.getBalance();
    ac1.setBalance(30);
    ac1.getBalance();
    bankAccount ac2;
    ac2.getBalance();

return 0;
}