39stlr 49st 59stl 69stlr 79st
s0tt t0ttl u0ttlr v0tt w0ttl
hrutl irutlr jrut krutl lrutlr
6hvtlr 7hvt 8hvtl 9hvtlr aivt
v8vt w8vtl x8vtlr y8vt z8vtl