C31232233133313221211113313331333131211113313231333133112312321231   >>    C3123223313331322121111331333133313121111331323133313311231232123   <<    C31232233133313221211113313331333131211113313231333133112312321233   >>      C31232233133313221211113313331333131211113313231333133112312321232   >>