need help !!!

BufferedReader buff = new BufferedReader(new InputStreamReader(System.in));
        int a = Integer.parseInt(buff.readLine());
        int b = Integer.parseInt(buff.readLine());
        int c = Integer.parseInt(buff.readLine());
        if(a < b){
            if(b <= c){
                System.out.println(b);
            }
            else if(a<=c && c<b){
                System.out.println(c);
            }
            else if(c<a){
                System.out.println(a);
            }
        }
        else{
            // b <= a
            if(a <= c){
                System.out.println(a);
            }
            else if(b<=c && c<a){
                System.out.println(c);
            }
            else if(c < b){
                System.out.println(b);
            }
        }

import java.io.*;

public class Solution {
    public static void main(String[] args) throws Exception {
        //在此编写你的代码
        BufferedReader re = new BufferedReader(new InputStreamReader(System.in));
        String s1 = re.readLine();
        String s2 = re.readLine();
        String s3 = re.readLine();
        int a = Integer.parseInt(s1);
        int b = Integer.parseInt(s2);
        int c = Integer.parseInt(s3);

        if(a==b&&b==c){
        System.out.println(a);
        }
        else if(a!= b&&b!=c&&a!=c){
        int max = a>b?a:b;
        max = c>max?c:max;

        int min = a>b?b:a;
        min = c>min?min:c;

        int d=a+b+c;
        int mid = d-max-min;
        System.out.println(mid);
        }else if(a!=b&&b==c){
            System.out.println(b);
        }else if(a==b&&b!=c){
            System.out.println(b);
        }else if(a!=b&&a==c){
            System.out.println(c);
        }
    }
}