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import java.util.Scanner;
 
public class Test {
 
  public static void main(String[] args) {
 
  Scanner scanner = new Scanner(System.in); 
  String input = null;
  while(true) {
    System.out.println("please input a string:");
    if (scanner.hasNextLine()) {
      input = scanner.nextLine();
      System.out.println(input);
      }
    }  
  }
}