What nested loop is like the if/else statement?

I am trying to make a program that calculates a bonus/raise every year with 3 different interest rates, and the loop should end when the user inputs 0 with a good bye.

I have resulted in using a while {if{for{for}}} else nested loop, but how can I remove the if else statement and use only do while nested loops?

This is what I have so far as my program:

int main()
{
    double salary;
    double raise;
    
    while (1)
    {
        cout << "Enter a salary: ";
        cin >> salary;
        
        if (salary != 0)
        {
            for(int rate = 3; rate <= 5; rate++)
            {
                cout << "Raite rate: " << rate << "%" << endl;
                double temp = salary;
                
                for(int year = 1; year <= 4; year++)
                {
                    raise = (temp * rate) / 100;
                    
                    temp += raise;
                    
                    cout << setw(14) << "Year: " << year << ", " << fixed << setprecision(2);
                    cout << "Raise: $" << raise << ", " << "Salary: " << temp << endl;
                }
            }
        }
        else {
            break;
        }
    }
    
    cout << "Good bye!";
    return 0;
}

I want to remove the if else statements and make it run the same.