C111113331333132322331333133313331323132313231211113313332213121   >>    C11111333133313232233133313331333132313231323121111331333221312   <<    C111113331333132322331333133313331323132313231211113313332213123   >>      C111113331333132322331333133313331323132313231211113313332213122   >>