C11111333133313232233133313331333133313331311331333133313231333133322233231   >>    C1111133313331323223313331333133313331333131133133313331323133313332223323   <<    C11111333133313232233133313331333133313331311331333133313231333133322233233   >>      C11111333133313232233133313331333133313331311331333133313231333133322233232   >>