C31232233133313221211113313331333132313331333133313231323312121   >>    C3123223313331322121111331333133313231333133313331323132331212   <<    C31232233133313221211113313331333132313331333133313231323312123   >>      C31232233133313221211113313331333132313331333133313231323312122   >>