or download this
P:\test>423305
1+2+3
...
Func_1(1,Func_2(Func3(1*2*3)*aFunc(3))+FuNc(4,5,6),-2,e,-10,-2e-10)+1
1, 1, 2, *, 3, *, 1, Func3(), 3, 1, aFunc(), *, 1, Func_2(), 4, 5, 6,
+3, FuNc(), +, -2, e, -10, -2e-10, 6, Func_1(), 1, +
Func_1(1,Func_2(Func3(1*2*3)*aFunc(3))+FuNc(4,5,6),-2,e,-10,-2e-10)+1