You are given a 2-D input array with dimensions n by 2. Each row in the array represents an object, and the color information is stored in the second column (arr[i][1]), where '0' represents red, '1' represents white, and '2' represents blue. Your task is to sort these n objects in the order of red, white, and blue while preserving the original order of the objects. Implement any sorting algorithm to achieve the goal and print the result. == arr = [[6, 0], [212, 1], [247, 0], [352, 1], [388, 1], [633, 0], [694, 2], [779, 1], [793, 0], [859, 2]]