' '.output
end
init inita do init
- meth work do '\n'.output
+ fun work do '\n'.output
end
class B
-special A
+ super A
init do
'B'.output
'1'.output
end
class C
-special A
+ super A
init do
'C'.output
'1'.output
end
class D
-special B
-special C
+ super B
+ super C
init do
'D'.output
'0'.output