(two==two).output
'\n'.output
-(not one is two).output
-(two is two).output
+(not one.is_same_instance(two)).output
+(two.is_same_instance(two)).output
'\n'.output
(not one>two).output
(three<=>two).output
'\n'.output
-one.succ.output
-three.prec.output
+one.successor(1).output
+three.predecessor(1).output