C111113331333132322331333133313331311331323133112121111112131121   >>    C11111333133313232233133313331333131133132313311212111111213112   <<    C111113331333132322331333133313331311331323133112121111112131123   >>      C111113331333132322331333133313331311331323133112121111112131122   >>