/***********************
 *
 *   Diamond - prints a String input by the user, as a triangle.
 *
 *   Author:   Shawn Brenneman
 *   Date:     2015-Sep-23
 *
 ***********************/
 import java.util.Scanner;
 public class Diamond
 {

 public static void main(String[] args) {

     Scanner scan = new Scanner(System.in);
 
     System.out.print("Enter a sentence: ");

     String input = scan.nextLine();

     int pos = 0;
     String accum = "";

     while (pos < input.length()){
        accum += input.charAt(pos);
        System.out.println(accum);
        pos++;
     }
     pos--;
     pos--;

     int ii = 0;
     while (pos >= 0) {
        ii = 0;
        while (ii < pos) {
            System.out.print(' ');
            ii++;
        }
        System.out.println(input.charAt(pos));
        pos--;
     }

 } //main 

 }