import java.lang.Math.*;

public class Logic {
    public static void main(String[] args){
 
       System.out.println("***** FIRST LOGIC ERROR ******\n");
       double balance = 1000;           // Savings account balance
       double rate = 7.0;               // Annual interest rate
       for (int k = 0; k < 12; k++)
	  balance = balance * (1 +  rate/12);
 
        System.out.println("John just put $1000 into his savings account.\n"
		       + "The interest rate is 7% per year, compounded monthly.\n"
		       + "After 1 year, John's balance is: $" + balance);
 
        System.out.println("***** NEXT LOGIC ERROR ******\n");
        double area = -15;
        double radius = Math.sqrt(area/Math.PI);
        System.out.println("The radius of a circle with area 15  square cm is "
			  + radius + " cm");

    }
}