C31232233133313221211113313331333131211113313231333132213231313321   >>    C3123223313331322121111331333133313121111331323133313221323131332   <<    C31232233133313221211113313331333131211113313231333132213231313323   >>      C31232233133313221211113313331333131211113313231333132213231313322   >>