AT
Size: a a a
AT
AK
AK
AT
AT
AT
AK
AT
AT
AK
AK
AK
def update_dictionary (d, key, value):
if key in d:
d[key] += [value]
elif 2*key in d:
d[2*key] += [value]
else:
d[2*key] = [value]
return key
d = {1:[2], 3:[4], 5:[6]}
key = int(input())
print(update_dictionary(d, key, 1))
AK
AK
AT
AK
AT
AK
AT
AT