# Function: hwb4
# Used Library: MCT (gates: 11  quantum costs: 23)
# This file have been taken from RevLib (www.revlib.org).
.version 1.0
.numvars 4
.variables a b c d
.inputs a b c d
.outputs a b c d
.constants ----
.garbage ----
.begin
t2 d b
t2 b c
t2 c a
t3 b d c
t2 a b
t3 a c d
t2 b a
t3 b d c
t2 a d
t2 d b
t2 c a
.end