(GOAL COMPLEXITY) (STARTTERM (FUNCTIONSYMBOLS f1)) (VAR A B) (RULES f1(A,B) -> Com_1(f3(A,A)) :|: A >= 1 f3(A,B) -> Com_1(f3(A,B - 1)) :|: B >= 1 f3(A,B) -> Com_1(f3(A - 1,A - 1)) :|: 0 >= B && A >= 2 )