import java.io.*;

public class ArrayPlay {
	
	static InputStreamReader isr;
	static BufferedReader comingIn;
	static PrintWriter goingOut;
	static boolean ok;
	
	public static void main ( String [] args ) throws IOException {
		
		initialiseIO();
		
		int [] store, temp = new int[10000];
		int i = 0;
		ok = true;
		goingOut.println("Please enter some integers for me to play with," +
				" with one on each line.");
		do { // gathering data from the keyboard
			temp[i] = getInt();
			i++;
		} while (ok);
		i--; // since the last pass through this (a non-number) shouldn't count!
		
		store = new int[i]; // we'll now shrink wrap the array
		for (int n = 0; n < store.length; n++)
			store[n] = temp[n];
		temp = null; // to save space
		
		goingOut.println("you entered " +i+ " numbers.");
		printArray(store);
		squareThings(store);
		printArray(store);
		
		tidyUpIO();
	}
	
	public static void squareThings ( int [] array ) {
		for (int n = 0; n < array.length; n++)
			array[n] *= array[n];
	}
	
	public static void printArray (int [] array) {
		for (int n = 0; n < array.length; n++)
			goingOut.println(array[n]);
	}
	
	public static void initialiseIO() {
		isr = new InputStreamReader ( System.in ) ;
		comingIn = new BufferedReader ( isr ) ;
		goingOut = new PrintWriter ( System.out , true ) ;
	} // end of initliseIO method
	
	public static void tidyUpIO() throws IOException {
		isr.close();
		comingIn.close();
		goingOut.close();
	} // end of tidyUpIO method
	
	public static int getInt () throws IOException {
		int temp = 0;
		//goingOut.println ( "Please enter an integer" ) ;
			try {
				temp = Integer.parseInt ( comingIn.readLine( ) ) ;
			}
			catch (NumberFormatException nfe) {
				ok = false;
			}
		return temp;
	} // end of getInt method
}