slope lines by kt3k

d=''
p='\x09'*99
t=[p]*89
r=range(99)
try:
 while 1:t+=[d+raw_input()+p,p];d+=' '
except:
 t+=[p]*199
 for x in['\x09'.join(t[i+j][j]for j in r).rstrip('\x09')for i in r]:
  if x>p:print x.replace('\x09',' ')

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

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