import itertools

a = [['a' ,'b'], ['c' , 'd'], ['e','f']]
b = [1, 2, 3, 4]


c = list(zip(a,b))
#print(c)

d = list(itertools.product(*a))
#print(d)


a = 'abc'
b = 'xyz'

c = list((zip(a,b)))

print("".join(*c))
9a4891edff3609a433a118a6f5445cbd97020a56
<mask token>

<mask token>
print(''.join(*c))

<mask token>
a = [['a', 'b'], ['c', 'd'], ['e', 'f']]
b = [1, 2, 3, 4]
c = list(zip(a, b))
d = list(itertools.product(*a))
a = 'abc'
b = 'xyz'
c = list(zip(a, b))
print(''.join(*c))

import itertools
a = [['a', 'b'], ['c', 'd'], ['e', 'f']]
b = [1, 2, 3, 4]
c = list(zip(a, b))
d = list(itertools.product(*a))
a = 'abc'
b = 'xyz'
c = list(zip(a, b))
print(''.join(*c))

import itertools

a = [['a' ,'b'], ['c' , 'd'], ['e','f']]
b = [1, 2, 3, 4]


c = list(zip(a,b))
#print(c)

d = list(itertools.product(*a))
#print(d)


a = 'abc'
b = 'xyz'

c = list((zip(a,b)))

print("".join(*c))