Input TRS:
    1: +(x,0()) -> x
    2: +(x,s(y)) -> s(+(x,y))
    3: +(0(),s(y)) -> s(y)
    4: s(+(0(),y)) -> s(y)
Number of Rules: 4
Direct POLO(Pol) ... orients all.
	I(+) = 3 * x1 + 3 * x2 + 2
	I(0) = 0
	I(s) = x1 + 3
Number of Rules: 0