On the Subject of Periodic Words

102007075015075034007073022008011003062016.

Presented is a display with a word on it, an initially blank display below it, a numbered keypad, and a stage counter.

The displayed word can be represented using symbols in the Periodic Table of the Elements. For three stages, input the atomic numbers of the word’s constituent elements — concatenated in order — prepending zeroes to each number until they are all of length three.

Note that a word may have multiple solutions. In this case, any solution which forms the word given will be accepted.

Element	Number	Element	Number	Element	Number	Element	Number
AC	89	DS	110	MO	42	RG	111
AG	47	DY	66	MT	109	RN	86
AL	13	ER	68	N	7	RU	44
AM	95	ES	99	NA	11	S	16
AR	18	F	9	NB	41	SC	21
AS	33	FE	26	ND	60	SE	34
AT	85	FL	114	NE	10	SI	14
AU	79	FR	87	NI	28	SM	62
B	5	GA	31	NO	102	SN	50
BA	56	GE	32	O	8	TA	73
BE	4	H	1	OG	118	TC	43
BI	83	HE	2	OS	76	TE	52
BR	35	HO	67	P	15	TH	90
C	6	HS	108	PA	91	TI	22
CA	20	I	53	PO	84	TL	81
CE	58	IN	49	PR	59	TS	117
CL	17	IR	77	PT	78	U	92
CO	27	K	19	PU	94	V	23
CN	112	LA	57	RA	88	W	74
CR	24	LI	3	RE	75	XE	54
CS	55	LU	71	RF	104	Y	39
CU	29	LV	116