2019-09-30
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
public class Demo01 {
public static void main(String[] args) {
/**
* 11~23, get the nth F
2019-09-30
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
public class Demo01 {
public static void main(String[] args) {
/**
* 11~23, get the nth F