#include <iostream>
#include <string>

using namespace std;

string decimalToBinary(string decimalString) {
    int decimalValue = stoi(decimalString); // Convert decimal string to integer
    if (decimalValue == 0) {
        return "0"; // Special case: input is "0"
    }

    string binaryString = "";

    while (decimalValue > 0) {
        int remainder = decimalValue % 2; // Get the remainder (0 or 1)
        binaryString = to_string(remainder) + binaryString; // Prepend the remainder to the binary string
        decimalValue /= 2; // Divide the decimal value by 2
    }

    return binaryString;
}

int main() {
    string str;
    cout << "Enter IP address" << endl;
    cin >> str;
    string res = "";
    string temp = ""; // Initialize temp here

    for (auto c : str) {
        if (c == '.') {
            string bin = decimalToBinary(temp);
            int k = bin.size();
            for (int i = k; i < 8; i++) {
                bin = '0' + bin;
            }
            res += bin;
            temp = ""; // Reset temp for the next octet
        } else {
            temp += c;
        }
    }

    // Convert and append the last octet
    string bin = decimalToBinary(temp);
    int k = bin.size();
    for (int i = k; i < 8; i++) {
        bin = '0' + bin;
    }
    res += bin;

    cout << "Binary representation: " << res << endl;

    return 0;
}