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Please explain the working of line 11.

 
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Pritha,
Line 11 uses formatting flags to output the line in a specified order. %1 or %2 or %3 or whatever you have there is the number of spaces to indent. %s is the string that you passed as a second parameter. %n is to place a new line there.

I have a blog post where I wrote more about how formatting flags work.
 
Pritha Banerjee
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thank you jeanne
 
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