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)
(list "a" "x")
(list 2
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)
)
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 10
)
(list "a" "*")
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 10
)
)
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 10
)
(list "*" "x")
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)
)
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 20
)
(list "a" "y")
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 20
)
)
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)
(list "a" "*")
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)
)
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)
(list "*" "y")
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 20
)
)
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)
(list "b" "x")
(list 4
 20
)
)
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 10
)
(list "b" "*")
(list 4
 10
)
)
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)
(list "c" "x")
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)
)
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 10
)
(list "c" "*")
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 10
)
)
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 10
)
(list "*" "x")
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)
)
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 20
)
(list "b" "y")
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 20
)
)
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 20
)
(list "b" "*")
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 20
)
)
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 20
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(list "c" "y")
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 20
)
)
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(list "c" "*")
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 20
)
)
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)
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 20
)
)
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(list "b" "x")
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 20
)
)
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(list "b" "*")
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 10
)
)
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)
(list "*" "x")
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 20
)
)
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 20
)
(list "b" "y")
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 20
)
)
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 20
)
(list "b" "*")
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 20
)
)
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 20
)
(list "*" "y")
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 20
)
)
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)
(list "*" "x")
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 20
)
)
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 20
)
(list "*" "y")
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 20
)
)
)