YES
O(n^2)
TRS:
 {   g(x, y) -> h(x, y),
  h(f(x), y) -> f(g(x, y))}
 Natural interpretation:
  Strict:
   {   g(x, y) -> h(x, y),
    h(f(x), y) -> f(g(x, y))}
  Weak:
   {}
  Interpretation class: deltarestricted
  [h](delta, X1, X0) = + 1*X0 + 1*X1 + 0 + 0*X0*delta + 1*X1*delta + 0*delta
  [g](delta, X1, X0) = + 1*X0 + 1*X1 + 0 + 0*X0*delta + 1*X1*delta + 1*delta
  [f](delta, X0) = + 1*X0 + 2 + 0*X0*delta + 0*delta
  h_tau_1(delta) = delta/(1 + 1 * delta)h_tau_2(delta) = delta/(1 + 0 * delta)
  g_tau_1(delta) = delta/(1 + 1 * delta)g_tau_2(delta) = delta/(1 + 0 * delta)
  f_tau_1(delta) = delta/(1 + 0 * delta)
  
  Qed