Input TRS:
    1: app(nil(),y) -> y
    2: app(add(n,x),y) -> add(n,app(x,y))
    3: reverse(nil()) -> nil()
    4: reverse(add(n,x)) -> app(reverse(x),add(n,nil()))
    5: shuffle(nil()) -> nil()
    6: shuffle(add(n,x)) -> add(n,shuffle(reverse(x)))
Number of Rules: 6
Direct QWPOS(mSum) ... orients all.
	I(nil) = 0
	I(app) = x1 + x2	sigma(app) = [2,1]
	I(add) = x1 + x2 + 2	sigma(add) = [2,1]
	I(reverse) = x1	sigma(reverse) = [1]
	I(shuffle) = x1 + 1	sigma(shuffle) = [1]
    PREC: nil > reverse > app = shuffle > add
Number of Rules: 0