def next(prev): result = '' curr = prev[0] rest = "" if len(prev) == 1: rest = " " else: rest = prev[1:] + " " counter = 1 for char in rest: if char != curr: result += str(counter) + curr counter = 1 curr = char else: counter += 1 return result def look_and_say(index): first = "1" print first for i in range(index): first = next(first) print first print look_and_say(9)
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