Sn 40

Sn 40Sn 40Sn 40Sn 40Sn 40Sn 40
Sn 40Sn 40Sn 40Sn 40Sn 40Sn 40
Sn 40Sn 40Sn 40Sn 40Sn 40Sn 40Sn 40Sn 40Sn 40Sn 40Sn 40Sn 40Sn 40Sn 40Sn 40Sn 40Sn 40Sn 40Sn 40Sn 40Sn 40Sn 40Sn 40