第三次过程性考核

import java.util.Scanner;
public class Main{
  public static void main (String [] args){
    Scanner n=new Scanner (System.in);
    String str=n.nextLine();
    StringBuffer sb =new StringBuffer(str);
    System.out.println(sb.reverse().toString());
  }
}

import java.util.*;
public class Main{
	public static void main(String[] args){
		Scanner read=new Scanner(System.in);
		int n=read.nextInt();
		int a[]=new int[n+1];
		int i;
		for(i=0;i<n;i++){
			a[i]=read.nextInt();
		}
		a[n]=read.nextInt();
		Arrays.sort(a);
		for(i=0;i<=n;i++){
			System.out.print(a[i]+" ");
		}
	}
}

import java.util.*;
public class Main{
	public static void main(String[] args){
		Scanner read=new Scanner(System.in);
		int N=read.nextInt();
		int a[]=new int[N];
		int i;
		for(i=0;i<N;i++){
			a[i]=read.nextInt();
		}
		int max=0;
		int min=0;
		for(i=1;i<N;i++){
		  max=(a[i]>a[max])?i:max;
			min=(a[i]<a[min])?i:min;

		}
		  
		  
		int c;
		c=a[0];
		a[0]=a[min];
		a[min]=c;
		if(max==0){
			max=min;
		}
		c=a[N-1];
		a[N-1]=a[max];
		a[max]=c;
		for(i=0;i<N;i++){
			System.out.print(a[i]+" ");
		}
	}
}

import java.util.Scanner;
public class Main{
	public static void main(String[] args){
		Scanner read=new Scanner(System.in);
		String n=read.nextLine();
		String a=n.substring(0,8);
		String b=n.substring(8,16);
		String c=n.substring(16,24);
		String d=n.substring(24,32);
		int a1=Integer.parseInt(a,2);
		int b1=Integer.parseInt(b,2);
		int c1=Integer.parseInt(c,2);
		int d1=Integer.parseInt(d,2);
		System.out.print(a1+"."+b1+"."+c1+"."+d1);
	}
}