def b(x):
    if (x == 0):
        return "0"
    s = ""
    while (x):
        s += str(x % 2)
        x //= 2
    return s[::-1]


def binx(x):
    x -= int(x)
    if (x == 0):
        return ""
    binn = "."
    while x:
        x *= 2
        if x >= 1:
            binn += "1"
        else:
            binn += "0"
        x -= int(x)
        if (len(binn) >= 9):
            return binn
    return binn


a = float(input())
print(b(int(a)), end="")
print(binx(a))