## {3,3}, diamond 1S + diamond 1S, solution 1
s2.
angleunit(2*pi/3)
# the line below lets us specify internal angles
angleofs(pi)
distunit(edge(3,3))
unittile(1,2,1,2)
unittile(1,2,1,2)
# the Conway notation
conway("(0 0')(1 3')(2 2')(3 1')")
sublines(1)