YES
Input TRS:
      1: s(a(x)) -> s(b(x))
      2: b(b(x)) -> a(x)
      3: f(s(x),y) ->= f(x,s(y))
      4: s(a(x)) ->= a(s(x))
      5: s(b(x)) ->= b(s(x))
      6: a(s(x)) ->= s(a(x))
      7: b(s(x)) ->= s(b(x))
Number of strict rules: 2
Direct POLO(bPol) ... removes: 1 3 2
      a 	w: x1 + 64573
      s 	w: x1 + 1
      b 	w: x1 + 32287
      f 	w: 2 * x1 + x2 + 8365
Number of strict rules: 0