"The program, which was about 50 statements in Visual Basic, checked all of 8991 four digit numbers from 1000 to 9999..." Whoa, you need 50 statements in VB fo

"The program, which was about 50 statements in Visual Basic, checked all of 8991 four digit numbers from 1000 to 9999..." Whoa, you need 50 statements in VB for that? I need 14 in Python: import collections def kaprekar(k): nr = 0 while True: if k == 6174: return nr small = int("".join(sorted(list("%04d" % k)))) large = int("".join(sorted(list("%04d" % k), reverse=True))) k = large - small nr += 1 freqs = collections.defaultdict(int) for i in range(1000, 10000): if not i % 1111: continue # skip 1111, 2222, etc... freqs[kaprekar(i)] += 1 for k,v in freqs.items(): print k, v Outputs: 0 1 1 356 2 519 3 2124 4 1124 5 1379 6 1508 7 1980