C11111333133313232233133313331333132313331323321313331333132233312111211   >>    C1111133313331323223313331333133313231333132332131333133313223331211121   <<    C11111333133313232233133313331333132313331323321313331333132233312111213   >>      C11111333133313232233133313331333132313331323321313331333132233312111212   >>