Sb s

Sb sSb sSb sSb s
Sb sSb sSb sSb sSb sSb sSb sSb s
Sb sSb sSb sSb sSb sSb sSb sSb sSb sSb sSb sSb s
Sb sSb sSb sSb sSb sSb sSb sSb sSb sSb sSb sSb sSb sSb sSb sSb s
Sb sSb sSb sSb sSb sSb sSb sSb s