func main() var s: []char :: cui@input() var a: int :: s[0] $ int - '0' $ int var b: int :: s[1] $ int - '0' $ int var c: int :: ^s - 1 if(s[2] > '4') do b :+ 1 if(b = 10) do a :+ 1 do b :: 0 if(a = 10) do a :: 1 do c :+ 1 end if end if end if do cui@print("\{a}.\{b}*10^\{c}\n") end func