YES
O(n)
TRS:
 {    c() -> d(),
  f(f(X)) -> c(),
     h(X) -> c()}
 Natural interpretation:
  Strict:
   {    c() -> d(),
    f(f(X)) -> c(),
       h(X) -> c()}
  Weak:
   {}
  Interpretation class: stronglylinear
  [h](X0) = + 1*X0 + 3
  [d] = + 0
  [f](X0) = + 1*X0 + 3
  [c] = + 2
  
  Qed