# 4 inputs
# 1 outputs
# 3 D-type flipflops
# 2 inverters
# 8 gates (1 ANDs + 1 NANDs + 2 ORs + 4 NORs)

INPUT(G0)
INPUT(G1)
INPUT(G2)
INPUT(G3)

OUTPUT(G17)

G5 = DFF(G10) 
G6 = DFF(G11) 
G7 = DFF(G13) 

G14 = NOT(G0) 
G17 = NOT(G11) 

G8 = AND(G14, G6,G7)

G15 = OR(G12, G8,G0)
G16 = OR(G3, G8) 

G9 = NAND(G16, G15)

G10 = NOR(G14, G11)  
G11 = NOR(G5, G9) 
G12 = NOR(G1, G7) 
G13 = NOR(G2, G12) 
