(STRATEGY
    INNERMOST)

(VAR
    x)
(DATATYPES
    A = µX.< s(X), 0 >)
(SIGNATURES
    f :: [A] -> A
    p :: [A] -> A)
(RULES
    f(s(x)) -> s(f(f(p(s(x)))))
    f(0()) -> 0()
    p(s(x)) -> x)