LF: K9, 11, 17, 81, 82, 83, Fourteen, Thirteen, Seventeen, Eighty, K_9, 1_1, 1_3, 1_4, 1_7, Feet, Ankle, Hallux, Toe, Calcaneus, Talus, DPM, Golem, OP, Headband, GSD, Pod, Mal, Shepherd, Shep, Mali, Malinois, G_S_D, O_P, 0_P
Any two digits that have the same first number and are back to back...