C11111333133313232233133313331333133313233213331323133313231121323221   >>    C1111133313331323223313331333133313331323321333132313331323112132322   <<    C11111333133313232233133313331333133313233213331323133313231121323223   >>      C11111333133313232233133313331333133313233213331323133313231121323222   >>