L = [
['Apple', 'Google', 'Microsoft'],
['Java', 'Python', 'Ruby', 'PHP'],
['Adam', 'Bart', 'Lisa']
]
print(L[0][0])
print(L[1][1])
print(L[2][-1])
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米兰的小铁匠
L = [
['Apple', 'Google', 'Microsoft'],
['Java', 'Python', 'Ruby', 'PHP'],
['Adam', 'Bart', 'Lisa']
]
print(L[0][0])
print(L[1][1])
print(L[2][-1])