(?) :: Int -> Int -> Int
-- testing 360 combinations of argument values
-- pruning with 0/0 rules
-- looking through 4 candidates of size 1
-- looking through 16 candidates of size 2
-- looking through 56 candidates of size 3
-- tested 22 candidates
x ? y  =  x + y

(?) :: Int -> Int -> Int
-- testing 360 combinations of argument values
-- pruning with 0/0 rules
-- looking through 4 candidates of size 1
-- looking through 16 candidates of size 2
-- looking through 56 candidates of size 3
-- tested 34 candidates
x ? y  =  x * y

i :: Int -> Int
-- testing 360 combinations of argument values
-- pruning with 0/0 rules
-- looking through 3 candidates of size 1
-- looking through 2 candidates of size 2
-- looking through 13 candidates of size 3
-- tested 8 candidates
i x  =  x + 1

d :: Int -> Int
-- testing 360 combinations of argument values
-- pruning with 0/0 rules
-- looking through 3 candidates of size 1
-- looking through 3 candidates of size 2
-- looking through 12 candidates of size 3
-- tested 18 candidates
cannot conjure

