(GOAL COMPLEXITY) (STARTTERM (FUNCTIONSYMBOLS f3)) (VAR A B) (RULES f2(A, B) -> Com_1(f300(A, C)) [ A = 0 ] f3(A, B) -> Com_1(f2(A, B)) f2(A, B) -> Com_1(f2(C + 2, B)) [ A >= 1 ] f2(A, B) -> Com_1(f2(C - 2, B)) [ 0 >= A + 1 ] )