You are to make 50 loops in the first curtain and 50 loops on the edge of the curtain that is in the second set. The loops are to be opposite one another.
Then make 50 loops on the edge of the one curtain that is outermost in the first set, along with 50 loops on the edge of the curtain that is outermost in the second set.
Also make loops of violet on the edge of the one curtain that is outermost in the first set, and do likewise within the edge of the curtain that is outermost in the second set.
He made blue loops on the edge of the curtain that was outermost within the first set. He did the same along the edge of the curtain that was outermost in the second set.