Rhestr

var a :=
	Rhestr newydd
	~ ['aaa']
	~ ['bbb']
	~ ['ccc'].

 var b := Rhestr ← ['x'] ; ['y'].
 Stdout ysgrifennu: a, stopio.
 Stdout ysgrifennu: b, stopio.

Rhestr ← ['aaa'] ; ['bbb'] ; ['ccc']
Rhestr ← ['x'] ; ['y']