public static void main(String[] args)
{Scanner scan = new Scanner(System.in);int N = scan.nextInt();int x = 2;for(int i = 0; i <= N; i++){int count = 0;for(int j = 1; j <= x; j++)if(x%j == 0)count++;if(count == 2)System.out.print(x + " ");x++;}
}

class driverFuction {
public static void main(String[] args)
{
Scanner scanner = new Scanner(System.in);
int x = 2;
int n = scanner.nextInt();

//count for n numbers
for(int i = 0; i <= n; i++) {
//reset count = 0;
int count = 0;

for (int j = 1; j <= x; j++) {
if (x % j == 0) count++;
}

if (count == 2) System.out.println("prime is x = " + x);

//add x
x++;
}
}
}

public class ExArraySortElement
{public static void main(String[] args) {int n, temp;//scanner class object creationScanner s = new Scanner(System.in);//input total number of elements to be readSystem.out.print("Enter the elements you want : ");n = s.nextInt();//integer array objectint a[] = new int[n];//read elements System.out.println("Enter all the elements:");for (int i = 0; i < n; i++) {a[i] = s.nextInt();//数组中的元素需要一个个地输入}//sorting elementsfor (int i = 0; i < n; i++) {for (int j = i + 1; j < n; j++) {if (a[i] > a[j]) {temp = a[i];a[i] = a[j];a[j] = temp;}}}//print sorted elements         System.out.println("Ascending Order:");for (int i = 0; i < n ; i++) {System.out.println(a[i]);}}
}

// package whatever; // don't place package name!import java.io.*;
import java.util.*;
import java.lang.*;class driverFuction {public static void main(String[] args)
{Scanner scanner = new Scanner(System.in);int n = scanner.nextInt();//new an arrayint[] nums = new int[n];//input n numbersfor (int i = 0; i < n; i++) {a[i] = scanner.nextInt();}//sort for (int i = 0; i < n; i++) {for (int j = i + 1; j < n; j++) {if (nums[i] > nums[j]) {int temp = nums[i];nums[i] = nums[j];nums[j] = temp;}}}//outputfor (int i = 0; i < n; i++) {System.out.println("nums[i] = " + nums[i]);}
}
}

import java.util.Scanner;
class PrimeCheck
{public static void main(String args[]){        int temp;boolean isPrime=true;Scanner scan= new Scanner(System.in);System.out.println("Enter any number:");//capture the input in an integerint num=scan.nextInt();scan.close();for(int i=2;i<=num/2;i++){temp=num%i;if(temp==0){isPrime=false;break;}}//If isPrime is true then the number is prime else notif(isPrime)System.out.println(num + " is a Prime Number");elseSystem.out.println(num + " is not a Prime Number");}
}

// package whatever; // don't place package name!

import java.io.*;
import java.util.*;
import java.lang.*;

class Palindrome
{
public static void main(String args[])
{
Scanner in = new Scanner(System.in);

System.out.println("Enter a string to check if it is a palindrome");
String original = in.nextLine();

//int length = original.length();

String clean = original.replaceAll("\\s+", "").toLowerCase();

//单词里面有空格，要用replaceall
int length = clean.length();
int forward = 0;
int backward = length - 1;
while (backward > forward) {
char forwardChar = clean.charAt(forward++);
char backwardChar = clean.charAt(backward--);
if (forwardChar != backwardChar)
System.out.println("false");
}
System.out.println("true");
}
}

import java.io.*;
import java.util.*;
import java.lang.*;

class Palindrome
{
public static void main(String args[])
{
String word, File file;
int count = 0;
Scanner scanner = new Scanner(file);
while (scanner.hasNextLine()) {
String nextToken = scanner.next();//表示下一行
if (nextToken.equalsIgnoreCase(word))
count++;
}
return count;
}
}