C31232233133313221211113313331333133313132322331323133313133112321   >>    C3123223313331322121111331333133313331313232233132313331313311232   <<    C31232233133313221211113313331333133313132322331323133313133112323   >>      C31232233133313221211113313331333133313132322331323133313133112322   >>