In a jumping contest between three frogs—Cal, Sunny, and Legs—each complete two jump/step sequences that land them in the same place.** When Cal jumps 3 times and then takes 6 steps forward, he lands in the same place as when he jumps 4 times and then takes 2 steps backward. When Sunny jumps 4 times and then takes 11 steps forward he lands in the same place as when he jumps 5 times and then takes 4 steps forward. When Legs jumps 2 times and then takes 13 steps forward he lands in the same place as when he jumps 4 times and then takes 5 steps backward. Which frog has the biggest jump (and wins the contest)?