Solve the programming task below in a Python markdown code block.
collections.OrderedDict

An OrderedDict is a dictionary that remembers the order of the keys that were inserted first. If a new entry overwrites an existing entry, the original insertion position is left unchanged. 

Example

Code

>>> from collections import OrderedDict
>>> 
>>> ordinary_dictionary = {}
>>> ordinary_dictionary['a'] = 1
>>> ordinary_dictionary['b'] = 2
>>> ordinary_dictionary['c'] = 3
>>> ordinary_dictionary['d'] = 4
>>> ordinary_dictionary['e'] = 5
>>> 
>>> print ordinary_dictionary
{'a': 1, 'c': 3, 'b': 2, 'e': 5, 'd': 4}
>>> 
>>> ordered_dictionary = OrderedDict()
>>> ordered_dictionary['a'] = 1
>>> ordered_dictionary['b'] = 2
>>> ordered_dictionary['c'] = 3
>>> ordered_dictionary['d'] = 4
>>> ordered_dictionary['e'] = 5
>>> 
>>> print ordered_dictionary
OrderedDict([('a', 1), ('b', 2), ('c', 3), ('d', 4), ('e', 5)])

Task  

You are the manager of a supermarket. 

You have a list of $N$ items together with their prices that consumers bought on a particular day. 

Your task is to print each item_name and net_price in order of its first occurrence.  

item_name = Name of the item. 

net_price = Quantity of the item sold multiplied by the price of each item.

Input Format

The first line contains the number of items, $N$. 

The next $N$ lines contains the item's name and price, separated by a space.

Constraints

$0<N\leq100$

Output Format

Print the item_name and net_price in order of its first occurrence.

Sample Input
9
BANANA FRIES 12
POTATO CHIPS 30
APPLE JUICE 10
CANDY 5
APPLE JUICE 10
CANDY 5
CANDY 5
CANDY 5
POTATO CHIPS 30

Sample Output
BANANA FRIES 12
POTATO CHIPS 60
APPLE JUICE 20
CANDY 20

Explanation

BANANA FRIES: Quantity bought: $\mbox{I}$, Price: $12$ 

Net Price: $12$ 

POTATO CHIPS: Quantity bought: $2$, Price: $30$

Net Price: $\mbox{60}$ 

APPLE JUICE: Quantity bought: $2$, Price: $10$ 

Net Price: $\textbf{20}$ 

CANDY: Quantity bought: $\begin{array}{c}A\end{array}$, Price: $5$ 

Net Price: $\textbf{20}$