C111113331333132322331333133313331333132313331333133322123233213332211   >>    C11111333133313232233133313331333133313231333133313332212323321333221   <<    C111113331333132322331333133313331333132313331333133322123233213332213   >>      C111113331333132322331333133313331333132313331333133322123233213332212   >>