$$a69e4fd sa64fa6s8d4f a +d8fa4s 6df4a+s*7fda+0/df +.a*/1179f1 +/df +*/sadf-+a 93d*9+a*d+f 2a-*d1f3 2+a*df- a9*-f-+sfd$$
Sorry but this is not an equasion.
