# -*- coding: utf-8 -*-
# Time : 2023/10/30 15:49
# Author : lirunsheng
# User : l'r's
# Software: PyCharm
# File : X2.py

# encoding: utf-8
# 第一题，讲二进制数转换为10进制数
def binToDec_int(b):
    d = 0
    for i in range(len(b)):
        # 请在此添加代码，补全函数BinToDec_int()
        # -----------Begin----------
        if b[i] == '1':
            d = d + 2 ** (len(b) - 1 - i)
    # ------------End-----------
    return d


def binToDec_float(b):
    # 请在此添加代码，补全函数BinToDec_int()
    # -----------Begin----------
    d = 0.0
    for i in range(len(b)):
        # 请在此添加代码，补全函数BinToDec_int()
        # -----------Begin----------
        if b[i] == '1':
            d = d + 2 ** (-(i+1))
    # ------------End-----------
    return d


if __name__ == '__main__':

    tests = []
    inputlist = input()
    # print(type(inputlist))
    # for i in inputlist:
    #     tests.append(str(i))
    tests = inputlist.split(',')
    for num in tests:
        if '.' in num:
            num1 = num.split('.')
            print(binToDec_int(num1[0])+binToDec_float(num1[1]))
        else:
            print(binToDec_int(num))