Голодная диета

import sys
from itertools import groupby
 
fox = list()
cat = list()
pinocchio = list()
for line in sys.stdin:
    line1 = line.split(' - ')
    if line1[1][:-1] == "Fox":
        fox.append(line1[0])
    elif line1[1][:-1] == "Cat":
        cat.append(line1[0])
    elif line1[1][:-1] == 'Pinocchio':
        pinocchio.append(line1[0])
new_fox = [el for el, _ in groupby(fox)]
new_cat = [el for el, _ in groupby(cat)]
new_pinocchio = [el for el, _ in groupby(pinocchio)]
if len(new_pinocchio) == 0:
    print("Fox:", end=' ')
    for i in range(len(new_fox) - 1):
        print(new_fox[i], end=', ')
    print(new_fox[-1])
    print("Cat:", end=' ')
    for i in range(len(new_cat) - 1):
        print(new_cat[i], end=', ')
    print(new_cat[-1])
elif len(new_fox) == 0:
    print("Pinocchio:", end=' ')
    for i in range(len(new_pinocchio) - 1):
        print(new_pinocchio[i], end=', ')
    print(new_pinocchio[-1])
    print("Cat:", end=' ')
    for i in range(len(new_cat) - 1):
        print(new_cat[i], end=', ')
    print(new_cat[-1])
elif len(new_cat) == 0:
    print("Pinocchio:", end=' ')
    for i in range(len(new_pinocchio) - 1):
        print(new_pinocchio[i], end=', ')
    print(new_pinocchio[-1])
    print("Fox:", end=' ')
    for i in range(len(new_fox) - 1):
        print(new_fox[i], end=', ')
    print(new_fox[-1])
elif len(new_fox) == 0 and len(new_cat) == 0:
    print("Pinocchio:", end=' ')
    for i in range(len(new_pinocchio) - 1):
        print(new_pinocchio[i], end=', ')
    print(new_pinocchio[-1])
elif len(new_fox) == 0 and len(new_pinocchio):
    print("Cat:", end=' ')
    for i in range(len(new_cat) - 1):
        print(new_cat[i], end=', ')
    print(new_cat[-1])
elif len(new_cat) == 0 and len(new_pinocchio):
    print("Fox:", end=' ')
    for i in range(len(new_fox) - 1):
        print(new_fox[i], end=', ')
    print(new_fox[-1])
else:
    print("Fox:", end=' ')
    for i in range(len(new_fox) - 1):
        print(new_fox[i], end=', ')
    print(new_fox[-1])
    print("Cat:", end=' ')
    for i in range(len(new_cat) - 1):
        print(new_cat[i], end=', ')
    print(new_cat[-1])
    print("Pinocchio:", end=' ')
    for i in range(len(new_pinocchio) - 1):
        print(new_pinocchio[i], end=', ')
    print(new_pinocchio[-1])

import sys
data = ''.join(sys.stdin.readlines())
data = data.split('\n')
m = {}
st = []
for s in data:
    st = s.split(' - ')
    if st[1] not in m:
        m[st[1]] = st[0]
    else:
        if st[0] not in m[st[1]]:
            m[st[1]] = m[st[1]] + ', ' + st[0]
for key in m.keys():
    print(key, ': ', m[key], sep='')

st = '''\
fish-krasnoborodko - Cat
fish-krasnoborodko - Cat
the hare - Fox
chicken in sauce - Fox
fish-krasnoborodko - Cat
young cockerel - Fox
red-chinned fish - Fox
tripe in Parmesan sauce - Cat
three crusts of bread - Pinocchio
half a nut - Pinocchio'''
d = {}
for line in st.splitlines():
    food, eater = line.split(' - ')
    d.setdefault(eater, set()).add(food)
for k, v in d.items():
    print(f'{k}:', ', '.join(v))