import java.util.Scanner;

public class Inventory $\{$

public static void main $($String$[]$ args$)\{$

Scanner scnr $=$ new Scanner$($System$.$in$)$;

InventoryNode headNode;

InventoryNode currNode;

InventoryNode lastNode;

String item;

int numberOfItems;

int i;

$//$ Front of nodes list

headNode $=$ new InventoryNode$()$;

lastNode $=$ headNode;

int input $=$ scnr$.$nextInt$()$;

for$($i $=0$; i $<$ input; i$++)\{$

item $=$ scnr$.$next$()$;

numberOfItems $=$ scnr$.$nextInt$()$;

currNode $=$ new InventoryNode$($item$,$ numberOfItems$)$;

currNode.insertAtFront$($headNode$,$ currNode$)$;

lastNode $=$ currNode;

$\}$

$//$ Print linked list

currNode $=$ headNode.getNext$()$;

while $($currNode $!=$ null$)\{$

currNode.printNodeData$()$;

currNode $=$ currNode.getNext$()$;

$\}$

$\}$

$\}$