C111113331333132322331333133313331323133313233213133313331321123231111   >>    C11111333133313232233133313331333132313331323321313331333132112323111   <<    C111113331333132322331333133313331323133313233213133313331321123231113   >>      C111113331333132322331333133313331323133313233213133313331321123231112   >>