Вывести индексы букв слова

s1 = str('Abracadabra')
s1 = s1.lower()
s2 = str('Fabric')
s2 = s2.lower()
s1 = list(s1)
s2 = list(s2)
N = len(s1) + 1
a = []
b = []
 
for i in range(len(s2)):
    b.append(s2[i])
    for j in range(len(s1)):
        if s2[i] not in s1:
            a.append("None")
            break
        if s2[i] == s1[j]:
            a.append(j)
    print(b, a, )

s1 = "Abracadabra".lower()
s2 = "Fabric".lower()
 
indexes = []
symbols = []
 
for i in s1:
    if i in s2 and i not in symbols:
        print(i)
        indexes.append(s1.index(i))
        symbols.append(i)
 
print(indexes, symbols, sep="\n")

>>> s1 = 'Abracadabra'
>>> print(type(s1))
<class 'str'>
>>> s1 = list(s1)
>>> print(type(s1))
<class 'list'>
>>>

s1 = 'Abracadabra'.lower()
s2 = 'Fabric'.lower()
for index, letter in s1:
    if letter in s2:
        print(index)

>>> s1 = 'Abracadabra'.lower()
>>> s2 = 'Fabric'.lower()
>>> [i for i in range(len(s1)) if s1[i] in s2]
[0, 1, 2, 3, 4, 5, 7, 8, 9, 10]
>>>

s1 = list(str('Abracadabra').lower())
s2 = list(str('Fabric').lower())
result = []
for i in range(len(s1)):
    s1[i] = [s1[i], i + 1]
for j in range(len(s2)):
    s2[j] = s2[j], j + 1
 
print(*s2, sep='\n', end='')

str('Abracadabra').lower()

s1 = 'Abracadabra'.lower()
s2 = 'Fabric'.lower()
result = []
for letter_2 in s2:
    if letter_2 in s1:
        result = [i+1 for i, letter_1 in enumerate(s1) if letter_2 == letter_1]
        print(letter_2,*result)
    else:
        print(letter_2,'None')

s1 = str('Abracadabra')
s1 = s1.lower()
s2 = str('Fabric')
s2 = s2.lower()
s1 = list(s1)
s2 = list(s2)
N = len(s1) + 1
a = []
b = []
 
for i in range(len(s2)):
    b.append(s2[i])
    for j in range(len(s1)):
        if s2[i] not in s1:
            a.append("None")
            break
        if s2[i] == s1[j]:
            a.append(j + 1)
for row in b, a:
    print(' '.join([str(elem) for elem in row]), sep='\n')

f a b r i c
None 1 4 6 8 11 2 9 3 10 None 5

s1 = 'Abracadabra'.lower()
s2 = 'Fabric'.lower()
for i in s2:
    c = i
    for j, k in enumerate(s1):
        if i == k:
            c = c+' '+str(j+1)
    if c == i:
        c = c+' None'
    print(c)

x = input()
min = 100
min_w = ""
max = 0
max_w = ""
c = 0
while x != "стоп":
    if len(x) > max:
        max = len(x)
        max_w = x
    if len(x) < min:
        min = len(x)
        min_w = x
    x = input()
for i in min_w:
    if not(i in max_w):
        print("НЕТ")
        c = 1
        break
if c == 0:
    print("ДА")