C11111333133313232233133313331333133313233213331323133313221211111121121   >>    C1111133313331323223313331333133313331323321333132313331322121111112112   <<    C11111333133313232233133313331333133313233213331323133313221211111121123   >>      C11111333133313232233133313331333133313233213331323133313221211111121122   >>