C31232233133313221211113313331333131211113313231333131223312231   >>    C3123223313331322121111331333133313121111331323133313122331223   <<    C31232233133313221211113313331333131211113313231333131223312233   >>      C31232233133313221211113313331333131211113313231333131223312232   >>