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<CENTER><FONT color=blue size=+2>Financial Management</FONT></CENTER>
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<CENTER><FONT color=green>Time limit:</FONT> 1 Seconds <FONT
color=green>Memory limit: </FONT>32768K </FONT><BR><FONT
color=green>Total Submit:</FONT> 11908 <FONT color=green>Accepted
Submit:</FONT> 4840 </CENTER>
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<P>Larry graduated this year and finally has a job. He's making a lot of money,
but somehow never seems to have enough. Larry has decided that he needs to grab
hold of his financial portfolio and solve his financing problems. The first step
is to figure out what's been going on with his money. Larry has his bank account
statements and wants to see how much money he has. Help Larry by writing a
program to take his closing balance from each of the past twelve months and
calculate his average account balance. </P>
<P><BR><B>Input Format:</B> <BR><BR>The input will be twelve lines. Each line
will contain the closing balance of his bank account for a particular month.
Each number will be positive and displayed to the penny. No dollar sign will be
included. </P>
<P><BR><B>Output Format: </B><BR><BR>The output will be a single number, the
average (mean) of the closing balances for the twelve months. It will be rounded
to the nearest penny, preceded immediately by a dollar sign, and followed by the
end-of-line. There will be no other spaces or characters in the output.
<BR><BR><BR></P>
<P><B>Sample Input: </B><BR><BR>100.00 <BR>489.12 <BR>12454.12 <BR>1234.10
<BR>823.05 <BR>109.20 <BR>5.27 <BR>1542.25 <BR>839.18 <BR>83.99 <BR>1295.01
<BR>1.75 </P>
<P><BR><B>Sample Output:</B> <BR><BR>$1581.42 </P>
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<FONT color=green size=+1>Problem Source: </FONT><I>Mid-Atlantic USA 2001</I>
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