#include <iostream>
using namespace std;

class Bank
{
    int bal;
public:
    void set()
    {
        bal = 1000;
    }
    void deposit(int a)
    {
        bal = bal + a;
    }
    void show();
};

void Bank::show()
{
    cout << "Balance: " << bal << endl;
}

int main()
{
    Bank b;
    b.set();
    b.deposit(500);
    b.show();
    return 0;
}