How many times the keys of a writter haveto be pressedin order to write first 400 counting no.'s?
Choose the correct choice from the following answers:	A) 998	B) 1000	C) 1092 times	D) 1100	E) 1200
1 to 9 = 9 * 1= 
<gadget id="calculator">9 * 1</gadget>
<output>9</output>
9   10 to 99= 90 * 2= 
<gadget id="calculator">90 * 2</gadget>
<output>180</output>
180   100 to 400= 301 * 3= 
<gadget id="calculator">301 * 3</gadget>
<output>903</output>
903   -----------   1092   1092 times
<result>C</result>
How many times the keys of a writter haveto be pressedin order to write first 400 counting no.'s?