a
b	c a
b	c|a
b	caa
b	cba
b	cca
b	cda
b	c|a
b	c a
b	ca
b	c a
b	c a
b	ca
b	c a
b	c a
b	c a
b	c|a
b	caa
b	cba
b	cca
b	cda
b	c|a
b	c a
b	c