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# -*- 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，
def binToDec_int ( b ) :
d = 0
for i in range ( len ( b ) ) :
# 请在此添加代码，
# -----------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，
# -----------Begin----------
d = 0.0
for i in range ( len ( b ) ) :
# 请在此添加代码，
# -----------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 ) )
