from Crypto.Cipher import AES
from base64 import b64decode
f= open("7.txt","r")
encrypt=''
key=b'YELLOW SUBMARINE'
for line in f:
    encrypt+=line.strip('\n')
#print (encrypt)
encrypt=b64decode(encrypt)
plaintext=AES.new(key, AES.MODE_ECB)
print(plaintext.decrypt(encrypt))

8a7231a10d9c7e0963758ad7c6e0abace23562be
<mask token>

<mask token>
for line in f:
    encrypt += line.strip('\n')
<mask token>
print(plaintext.decrypt(encrypt))

<mask token>
f = open('7.txt', 'r')
encrypt = ''
key = b'YELLOW SUBMARINE'
for line in f:
    encrypt += line.strip('\n')
encrypt = b64decode(encrypt)
plaintext = AES.new(key, AES.MODE_ECB)
print(plaintext.decrypt(encrypt))

from Crypto.Cipher import AES
from base64 import b64decode
f = open('7.txt', 'r')
encrypt = ''
key = b'YELLOW SUBMARINE'
for line in f:
    encrypt += line.strip('\n')
encrypt = b64decode(encrypt)
plaintext = AES.new(key, AES.MODE_ECB)
print(plaintext.decrypt(encrypt))

from Crypto.Cipher import AES
from base64 import b64decode
f= open("7.txt","r")
encrypt=''
key=b'YELLOW SUBMARINE'
for line in f:
    encrypt+=line.strip('\n')
#print (encrypt)
encrypt=b64decode(encrypt)
plaintext=AES.new(key, AES.MODE_ECB)
print(plaintext.decrypt(encrypt))
