Input TRS:
    1: first(0(),X) -> nil()
    2: first(s(X),cons(Y)) -> cons(Y)
    3: from(X) -> cons(X)
Number of Rules: 3
Direct POLO(mSum) ... orients all.
	I(0) = 1
	I(from) = x1 + 1
	I(nil) = 0
	I(s) = x1 + 1
	I(cons) = x1
	I(first) = x1 + x2
Number of Rules: 0