# a four-bit square root circuit

INPUT(1)	# x1	
INPUT(2)	# x2
INPUT(3)	# x3
INPUT(4)	# x4

OUTPUT(11)	# y1
OUTPUT(8)	# y2

5 = NOR(1, 2)
6 = NOT(4)
7 = AND(3, 6)
8 = OR(3, 4)
9 = NAND(5, 3, 4)
10 = OR(5, 7)
11 = NAND(9, 10)