A blonde, a redhead, and a brunette were shipwrecked on a tiny isle in the middle of the ocean.

The brunette said, "Let's see who can get to the mainland first by breaststroke."

After a couple of days, the brunette made it to the mainland. A few days after that, the redhead made it to the mainland.

Two weeks after that, the blonde arrived on the mainland and said, "I think you two cheated by using your arms."