Three cubes, of side l0l0, 2l02l0, and 3l03l0 are placed next to one another (in contact) with their centers along a straight line as shown in the figure What is the position, along this line, of the CMCM of this system? Assume the cubes are made of the same uniform material. Express your answer in terms of l0l0. Express your answer using two significant figures.

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