{
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    {
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     "text": [
      "Input a binary number: 10001\n",
      "The decimal value of the number is 17\n"
     ]
    }
   ],
   "source": [
    "# Write a Python program to convert a binary number to decimal number.\n",
    "\n",
    "\n",
    "b_num = list(input(\"Input a binary number: \"))\n",
    "value = 0\n",
    "\n",
    "for i in range(len(b_num)):\n",
    "\tdigit = b_num.pop()\n",
    "\tif digit == '1':\n",
    "\t\tvalue = value + pow(2, i)\n",
    "print(\"The decimal value of the number is\", value)\n"
   ]
  }
 ],
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