YES
O(n^2)
TRS:
 {
      +(0(), y) -> y,
   +(s(x), 0()) -> s(x),
  +(s(x), s(y)) -> s(+(s(x), +(y, 0())))
 }
 DUP: We consider a non-duplicating system.
  Trs:
   {
        +(0(), y) -> y,
     +(s(x), 0()) -> s(x),
    +(s(x), s(y)) -> s(+(s(x), +(y, 0())))
   }
  Matrix Interpretation:
   Interpretation class: triangular
       [X1]    [1 0][X1]   [0]
   [s]([X0]) = [0 1][X0] + [3]
   
         [2]
   [0] = [0]
   
       [X3]  [X1]    [1 0][X3]   [1 1][X1]   [0]
   [+]([X2], [X0]) = [0 1][X2] + [0 1][X0] + [0]
   
   
   Qed