The four karate kicks are used in four different sequences, one for each side of the ring
Mae Geri, kekome, mawashigeri, Ushiro Geri
Kekome, maegeri, mawashigeri, Ushiro Geri
Ushirogeri, kekome, maegeri, mawashigeri
Mawashigeri, ushirogeri, maegeri, kekome
The order of the kicks changes as does the footwork, whether front or rear leg is used first, whether you keep to to same leg or alternate