C31232233133313221211113313331333131211113313231333133112321311231   >>    C3123223313331322121111331333133313121111331323133313311232131123   <<    C31232233133313221211113313331333131211113313231333133112321311233   >>      C31232233133313221211113313331333131211113313231333133112321311232   >>