C111113331333132322331333133313331323133313233213133313113313232222131   >>    C11111333133313232233133313331333132313331323321313331311331323222213   <<    C111113331333132322331333133313331323133313233213133313113313232222133   >>      C111113331333132322331333133313331323133313233213133313113313232222132   >>