天干地支，6月12日

思路：

    开两个数组储存，找到0年的位置，从0往后判段（其实不找也一样，就用2020算就可以了，非常简单）
参考代码:

import java.io.*;
import java.util.LinkedList;

public class Main {
	static BufferedReader bf=new BufferedReader(new InputStreamReader(System.in));
	static PrintWriter pw=new PrintWriter(new BufferedWriter(new OutputStreamWriter(System.out)));
	static LinkedList<String> list=new LinkedList<>();
	public static void main(String[] args) throws IOException {
		int year=Integer.parseInt(bf.readLine());
		String[] tiangan= {"jia","yi","bing","ding","wu","ji","geng","xin","ren","gui"};
		String[] dizhi= {"zi","chou","yin","mao","chen","si","wu","wei","shen","you","xu","hai"};
		int initT=6;
		int initD=8;
		pw.print(tiangan[year%10+initT>9?year%10+initT-10:year%10+initT]);
		pw.print(dizhi[year%12+initD>11?year%12+initD-12:year%12+initD]);
		pw.flush();
	}
}