C31232233133313221211113313331333131211113313231333131232333133313112121   >>    C3123223313331322121111331333133313121111331323133313123233313331311212   <<    C31232233133313221211113313331333131211113313231333131232333133313112123   >>      C31232233133313221211113313331333131211113313231333131232333133313112122   >>