(GOAL COMPLEXITY) (STARTTERM (FUNCTIONSYMBOLS f3)) (VAR A B C D) (RULES f2(A,B,C) -> Com_1(f2(-1 + A,B,C)) :|: A >= 31 f2(A,B,C) -> Com_1(f300(A,-1 + B,C)) :|: 30 >= A f300(A,B,C) -> Com_1(f2(A,B,C)) :|: B >= 21 f300(A,B,C) -> Com_1(f1(A,B,D)) :|: 20 >= B f3(A,B,C) -> Com_1(f300(A,B,C)) )