Andy is standing directly across a river that runs parallel to the base of a cliff. from his spot, he measures the angle of elevation to a red marker at the top of the cliff (along a line that is perpendicular to the cliff face) to be 42 degrees. He then walks 100 meters downstream and looks back at the same marker. He measures the angle between the line he walked and the line formed between his new position and a point at the base of the cliff directly below the red marker to be 22 degrees. Draw the diagram and calculate the height of the cliff.

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