tile edges matches {{N E S W}*}
num tile types=4
num binding types=3
tile edges={
{3 3 2 2}
{2 2 3 3}
{1 1 3 3}
{3 3 1 1}}
binding strengths=
{1 1 1}
seed=30,30,1
Gse=9
Gmc=13
size=64