(GOAL COMPLEXITY) (STARTTERM (FUNCTIONSYMBOLS start)) (VAR A B) (RULES eval1(A,B) -> Com_1(eval2(A,B)) :|: A >= 1 && B = A eval2(A,B) -> Com_1(eval2(A - 1,B - 1)) :|: A >= 1 eval2(A,B) -> Com_1(eval1(A,B)) :|: 0 >= A start(A,B) -> Com_1(eval1(A,B)) )