YES
O(n)
TRS:
 {h(x, x) -> x,
  f(x, y) -> h(x, y),
  f(x, y) -> h(y, x)}
 Natural interpretation:
  Strict:
   {h(x, x) -> x,
    f(x, y) -> h(x, y),
    f(x, y) -> h(y, x)}
  Weak:
   {}
  Interpretation class: stronglylinear
  [f](X1, X0) = + 1*X0 + 1*X1 + 3
  [h](X1, X0) = + 1*X0 + 1*X1 + 2
  
  Qed