Invoke A( 55 )
Invoke A()
Invoke A()
Invoke B( 66 )
A.a = 3
A.b = 2
B.a = 3
B.d = 5

a1.x = 55
a2.x = 6
b1.x = 66
b2.x = 6

a1 = A.toString(): 55
a2 = A.toString(): 6
b1 = A.toString(): 6
b2 = A.toString(): 6

a1.f( 'A' ) = A.f( 65 )
b1.f( 'A' ) = B.f( 'A' )
b2.f( 'A' ) = A.f( 65 )

a1.f( 65 ) = A.f( 65 )
b1.f( 65 ) = A.f( 65 )
b2.f( 65 ) = A.f( 65 )

a1.f( 65.0 ) = A.f( 65.0 )
b1.f( 65.0 ) = B.f( 65.0 )
b2.f( 65.0 ) = B.f( 65.0 )

b1.x = 456
b2.x = 6
b1.get() = 456
b2.get() = 456