M = "aaa bbb aaa ccc bbb bbb" 
M_split = M.split()
print(M_split)
a, b, c, d, e = 0, 0, 0, 0, 0

for i in range(len(M_split)):
  if M_split[i] == 'aaa':
    a += 1
  elif M_split[i] == 'bbb':
    b += 1
  elif M_split[i] == 'ccc':
    c += 1
  elif M_split[i] == 'ddd':
    d += 1
  elif M_split[i] == 'eee':
    e += 1
Numbering = {a: 'aaa', b: 'bbb', c: 'ccc', d: 'ddd', e: 'eee'} #왜 d가 사라지는거지???????
print(a,b,c,d,e)
print(Numbering)
w = dict(reversed(sorted(Numbering.items())))
if a == 0:
  del w[a]
if b == 0:
  del w[b]
if c == 0:
  del w[c]
if d == 0:
  del w[d]
if e == 0:
  del w[e]
print(w)