C11111333133313232233133313331333133313331313331333133313233313232321   >>    C1111133313331323223313331333133313331333131333133313331323331323232   <<    C11111333133313232233133313331333133313331313331333133313233313232323   >>      C11111333133313232233133313331333133313331313331333133313233313232322   >>