C1111233131211111211113313331333133313331122212111111331333132313232333133321   >>    C111123313121111121111331333133313331333112221211111133133313231323233313332   <<    C1111233131211111211113313331333133313331122212111111331333132313232333133323   >>      C1111233131211111211113313331333133313331122212111111331333132313232333133322   >>