C1111233131211111211113313331333133313331122212111111331323323223313331123231   >>    C111123313121111121111331333133313331333112221211111133132332322331333112323   <<    C1111233131211111211113313331333133313331122212111111331323323223313331123233   >>      C1111233131211111211113313331333133313331122212111111331323323223313331123232   >>