1st Tuenti Programming Contest

Tuenti Programming Contest Contest Questions Stats      

Challenge 6: The clock « Prev Next »


Completion time: 10 percentile: 0.56 h
Average: 5.81 h
90 percentile: 16.97 h
# of completions:260

You have a digital, 7 led segment, clock. One day, while waking up from a sci-fi dream, you wonder: how many times will the individual leds turn on after X seconds, from a 00:00:00 position?

Yeah, geeks. But as a good geek you will not that question stay on your mind forever, right? ;)

Take into account that every second, all leds turn off and then the ones for the next position will turn on.

Sample input

0
4

Sample output

36
172



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