```When one method defined in many places, I want to use the super to
invoke them one by one. This is the code:

#########################################
module M
def report( a = 4, b =5)
p "M report begin: a=#{a},b=#{b}"
a = 6
super(a)
p "M report end"
end
end

class B
def report(a=11,b=12)
p "B report 1 begin: a=#{a},b=#{b}"
p "B report 1 end"
end
def report(a=13,b=14)
p "B report 2 begin: a=#{a},b=#{b}"
#super()
p "B report 2 end"
end
end

class C < B
def report( a=8,b=9)
p "C report 1 begin: a=#{a},b=#{b}"
p "C report 1 end"
end
def report( a=7,b=3)
p "C report 2 begin: a =#{a},b=#{b}"
super()
p "C report 2 End"
end
include M
end

class D < C
def report( a = 2, b=1)
p "D report 1 begin: a=#{a},b=#{b}"
super(a,b)
p "D report 1 end"
end
include M
def report(a = -2, b=-1)
p "D report 2 begin: a=#{a},b=#{b}"
super
p "D report 2 end"
end
end

d = D.new
d.report

#########################################
That's the output:

:!ruby testMethodGet.rb
"D report 2 begin: a=-2,b=-1"
"C report 2 begin: a =-2,b=-1"
"M report begin: a=4,b=5"
"B report 2 begin: a=6,b=14"
"B report 2 end"
"M report end"
"C report 2 End"
"D report 2 end"

I find sometimes it will invoke the super class' method first(D->C->M),
but it will invoke the module's method first(C->M->B) too.
I know I include the module in different place in the different classes.
But I don't know the strange working .
Can anyone find the problem?
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