import java.util.*;
public class xiangxian 
{
    public static void main(String[] args)
    {
        float x,y;
        Scanner s1 = new Scanner(System.in);
        Scanner s2 = new Scanner(System.in);
        System.out.println("请输入X的值：");
                x = s1.nextFloat();
        System.out.println("请输入Y的值：");
        y = s2.nextFloat();
        if(x>0&&y>0)
        {
            System.out.println("第一象限");
        }
        if(x<0&&y>0)
        {
            System.out.println("第二象限");
        }
        if(x<0&&y<0)
        {
            System.out.print("第三象限");
        }
        if(x>0&&y<0)
        {
            System.out.println("第四象限");
        }
        if(x==0)
        {
            System.out.println("在Y轴上");
        }
        if(y==0)
        {
            System.out.println("在X轴上");
        }
    }
}