C11111333133313232233133313331333133313331311211331323133312231   >>    C1111133313331323223313331333133313331333131121133132313331223   <<    C11111333133313232233133313331333133313331311211331323133312233   >>      C11111333133313232233133313331333133313331311211331323133312232   >>