# 1601.py

print filter (lambda x: ord(x)<68,'ABCDEAB')
# ABCAB

print filter (lambda x: 'a'<=x<='z', 'a4-bcEFd..e')
# abcde

#######################################

def pari (x): return x%2==0

#######################################

v=xrange(1,21)
print filter(pari,v)
# [2, 4, 6, 8, 10, 12, 14, 16, 18, 20]

#######################################

v=['Roma','Ferrara','Bologna','Pisa']
print filter(lambda x: len(x)>4,v)
# ['Ferrara', 'Bologna']

#######################################

imp = [['Rossi',2000],['Verdi',3000],
  ['Gentili',1800],['Bianchi',3400],
  ['Tosi',1600],['Neri',2800]]
imp3000=filter(lambda x: x[1]>=3000,imp)
for x in imp3000: print x[0],
print # Verdi Bianchi