using System;

public class Program

{

    static string strToBinStr(string s) {

        var result = long.Parse(s);

        return Convert.ToString(result, 2);

    }

    static string getFrac(double frac, int bits) {

        //Console.WriteLine("Getting fraction for: " + frac);

        string res = "";

        if(frac == 0)

            return "0";

        while(frac != 0 && bits > 0) {

            frac *= 2;

            if(frac >= 1) {

                res += "1";

                frac -= 1.0;

            }

            else {

                res += "0"; 

            }

            bits--;

        }

        return res;

    }

    static void shiftPointLeft(ref string integer, ref string fraction) {

        var last = integer[integer.Length - 1];

        integer = integer.Remove(integer.Length - 1, 1);

        fraction = last + fraction;

    }

    static void shiftPointRight(ref string integer, ref string fraction) {

        var first = fraction[0];

        fraction = fraction.Remove(0, 1);

        integer = integer + first; 

    }

    static int normalize(ref string integer, ref string fraction, int expBias) {

        int exp = 0;

        if( integer == "0" ) {

            //Console.WriteLine("Before shift: " + integer + ", " + fraction );

            while( !integer.Contains("1") ) {

                //handle special case where we shift right  

                shiftPointRight(ref integer, ref fraction);

                //Console.WriteLine("After shift: " + integer + ", " + fraction );

                exp++;

            }

            return expBias - exp;

        }

        ///Console.WriteLine("Before shift: " + integer + ", " + fraction );

        int intDigits = integer.Length;

        for(int i = 1; i < intDigits; i++) {

            exp++;

            shiftPointLeft(ref integer, ref fraction);

            //Console.WriteLine("After shift: " + integer + ", " + fraction );

        }

        return expBias + exp;

    }

    public static void Main()

    {

        Console.Write("Enter your number:");

        var num = Console.ReadLine().Trim();

        bool sign = num[0] == '-';

        if(sign) {

            num = num.Remove(0, 1);

        }

        if(num[0] == '.') {

            num = num.Insert(0, "0");

        }

        if(!num.Contains(".")) {

            num = num + ".";    

        }

        if(num[num.Length -1] == '.') {

            num += "0";

        }

        var fields = num.Split('.');

        Console.WriteLine("Parsing: " + fields[0] + " . " + fields[1]);

        //ulong integer = ulong.Parse(fields[0]);

        //ulong fraction = ulong.Parse(fields[1]);

        var fraction = getFrac(double.Parse("." + fields[1]), 23);

        var integer = fields[0].Length == 0 ? "0" : strToBinStr(fields[0]);

        var signBit = sign ? "1" : "0";

        Console.WriteLine();

        Console.WriteLine("Sign?: " + sign);

        Console.WriteLine("Integer part: " + integer + ", Fraction part: " + fraction);

        Console.WriteLine("32 bit float: ");

        var exp = normalize( ref integer, ref fraction, 127);

        var expStr = Convert.ToString(exp, 2).PadLeft(8, '0');

        Console.Write(signBit + "-" + expStr + "-" + fraction.PadRight(23, '0'));

        //Expected answer for 12.375: 0-10000010-10001100000000000000000 

    }

}