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Matrix = [[0]*5 for i in range(3)]
Matrix[0][1] = 1
Matrix[2][3] = 5
for i in range(3):
print(Matrix[i])
>>> a = []
>>> a.append([])
>>> a[0].append(10)
>>> a[0].append(20)
>>> a.append([])
>>> a[1].append(500)
>>> a[1].append(600)
>>> a[1].append(700)
>>> a
[[10, 20], [500, 600, 700]]
a = ((10, 20), (30, 40), (50, 60))
b = ([10, 20], [30, 40], [50, 60])
c = [(10, 20), (30, 40), (50, 60)]
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