A Haiku is a Japanese poem of seventeen syllables, in three lines of five, seven, and five.Ada has been told
To write down five haikus plus
Two more every hour.
Such that she needs to
Write down five in the first hour
Seven, nine, so on.
Ada has so far
Forty haikus and writes down
Seven every hour.
At which hour after
She begins will she not have
Enough haikus done?Proposed by Ada Tsui