C31232233133313221211113313331333132313331322121111113133112121   >>    C3123223313331322121111331333133313231333132212111111313311212   <<    C31232233133313221211113313331333132313331322121111113133112123   >>      C31232233133313221211113313331333132313331322121111113133112122   >>