mul.tree	node	dups
1	x*	102
1	y*	88
1	z*	193
1	B	234
1	A	344
1	C	232
1	x+	104
1	y+	87
1	z+	212
1	D	386
1	<1>	94
1	<2>	82
1	<3>	102
1	<4>	73
1	<5>	110
1	<6>	101
1	<7>	143
1	<8>	108
1	<9>	0