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#!/usr/bin/python
import sys
if len(sys.argv) != 2:
print "Usage: topics.py words-per-topic"
exit(1)
for t,line in enumerate(sys.stdin):
tokens = line.split()
terms = []
for token in tokens:
elements = token.rsplit(':',1)
terms.append((int(elements[1]),elements[0]))
terms.sort()
terms.reverse()
print "Topic %d:" % t
map(lambda (x,y) : sys.stdout.write(" %s:%s\n" % (y,x)), terms[:int(sys.argv[1])])
print
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