(GOAL COMPLEXITY) (STARTTERM (FUNCTIONSYMBOLS f1)) (VAR A B) (RULES f1(A,B) -> Com_1(f2(A,B)) :|: A >= 1 && B >= 1 f2(A,B) -> Com_1(f2(A - 1,B)) :|: A >= 2 && B >= 1 f2(A,B) -> Com_1(f2(A,B - 1)) :|: A >= 1 && B >= 2 )