C11111333133313232233133313331333132313331323321313331333132313221231231   >>    C1111133313331323223313331333133313231333132332131333133313231322123123   <<    C11111333133313232233133313331333132313331323321313331333132313221231233   >>      C11111333133313232233133313331333132313331323321313331333132313221231232   >>