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A "knot'' is a unit of speed in marine travel. One knot is 1.852 kilometers per hour (km/h]. Rather than using a traditional unit system, we wish to use an unusual unit system called the FFF system: furlong-firkin-fortnight. One furlong is equal to 201 meters [m] and one fortnight is 14 days [d]. Convert the speed of 20 knots to units of furlong per fortnight.
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