import java.util.Scanner;

public class Temperatures {

    public static void main(String[] args) {

        Scanner reader = new Scanner(System.in);
        // Write your code here.

        System.out.println("welcome");
        while (true) {
            System.out.print("pick a numbers.");
            double number1 = Double.parseDouble(reader.nextLine());
            System.out.print("pick a numbers.");
            double number2 = Double.parseDouble(reader.nextLine());
            System.out.print("pick a numbers.");
            double number3 = Double.parseDouble(reader.nextLine());
            System.out.print("pick a numbers.");
            double number4 = Double.parseDouble(reader.nextLine());

            if (number1 >= -30 && number1 <= 40) {
                if (number2 >= -30 && number2 <= 40) {
                    if (number3 >= -30 && number3 <= 40) {
                        if (number4 >= -30 && number4 <= 40){
                            Graph.addNumber(number1);
                            Graph.addNumber(number2);
                            Graph.addNumber(number3);
                            Graph.addNumber(number4);

                        }else {
                            Graph.addNumber(number1);
                            Graph.addNumber(number2);
                            Graph.addNumber(number3);
                        }

                        } else {
                        if (number4 >= -30 && number4 <= 40) {
                            Graph.addNumber(number1);
                            Graph.addNumber(number2);
                            Graph.addNumber(number4);
                        } else {
                            Graph.addNumber(number1);
                            Graph.addNumber(number2);
                        }
                    }
                }else if (number3 >= -30 && number3 <= 40){
                    if (number4 >= -30 && number4 <= 40){
                        Graph.addNumber(number1);
                        Graph.addNumber(number3);
                        Graph.addNumber(number4);
                    }else {
                        Graph.addNumber(number1);
                        Graph.addNumber(number3);
                    }
                }else {
                    Graph.addNumber(number1);
                }
            }else if (number2 >= -30 && number2 <= 40) {
                if (number3 >= -30 && number3 <= 40) {
                    if (number4 >= -30 && number4 <= 40){
                        Graph.addNumber(number2);
                        Graph.addNumber(number3);
                        Graph.addNumber(number4);

                    }else {
                        Graph.addNumber(number2);
                        Graph.addNumber(number3);
                    }

                } else {
                    if (number4 >= -30 && number4 <= 40) {
                        Graph.addNumber(number2);
                        Graph.addNumber(number4);
                    } else {
                        Graph.addNumber(number2);
                    }
                }
            }else if (number3 >= -30 && number3 <= 40){
                if (number4 >= -30 && number4 <= 40){
                    Graph.addNumber(number3);
                    Graph.addNumber(number4);
                }else {
                    Graph.addNumber(number3);
                }
            }else {
                if (number4 >= -30 && number4 <= 40) {
                    Graph.addNumber(number4);
                }
                else {
                    System.out.println("No numbers added");
                }

            }

        }
    }
}

            // Graph is used as follows:
    /*  Graph.addNumber(7);
        double value = 13.5;
        Graph.addNumber(value);
        value = 3;
        Graph.addNumber(value); */
            // Remove or comment out these lines above before trying to run the tests.