X =	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15
Y =	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15
X ↔ Y

Ext-GCD(14, 9) :

i	GCD			Bezout				AOdd :						AEven :
	A	↔	B	ax	ay	bx	by	|A-B|	A↔B	Sx	Sy	ax ← Sx'	ay ← Sy'	A ← A/2	ax ← ax + Y	ay ← ay + X	ax ← ax/2	ay ← ay/2
0	14		9	1	0	0	1
1	14		9	1	0	0	1	5						7	10	14	5	7
2	7		9	5	7	0	1	2	1	5	8	5	8	1	14	22	7	11
3	1	↔	7	7	11	5	7	6	1	12	18	3	4	3	12	18	6	9
4	3		1	6	9	7	11	2	0	13	20	4	6	1	Even	Even	2	3
5	1		1	2	3	7	11	0
6	1		1	2	3	7	11	0
7	1		1	2	3	7	11	0
(2)(14) - (3)(9) = 1