isolating part of elemnnt in a list

[Yoriz]

Need to get the 0 index of the first list and the 0 index of the inner list to be able to use split on '1 A'.

>>> my_list = [['1 A'], ['2 B']]
>>> a, b = my_list[0][0].split()
>>> my_list[0][0] = '{} {}'.format(int(a)+10, b)
>>> my_list
[['11 A'], ['2 B']]
>>>