Question: Given a 2D array A = [[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]], how to get A[i][0] out and shuffle

Given a 2D array A = [[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]], how to get A[i][0] out and shuffle it and put it back(in python)?

A[i][0] is 1, 4, 7, 10

For example, after shuffle it is 7, 4, 10, 1

Put it back: [[7, 2, 3], [4, 5, 6], [10, 8, 9], [1, 11, 12]]

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