def tostring(list):
        string = ""
        for i in list:
                string += str(i)
        print(string)

def getbin(n):
        out = []
        while (n >= 1):
                out.append(n % 2)
                n = int(n / 2)

        out.reverse()
        return out

def tobin(n):
        raw = getbin(n)
        tostring(raw)

n = int(input("what number would you like to convert: "))
tobin(n)