#include <iostream>

using namespace std;

int main()
{
    string input1="", input2="";
    cout << "Zadejte dve binarni cisla:" << endl;
    cin >> input1;
    cin >> input2;

    //ošetøení vstupu pro neciselne vstupy
    if (cin.fail())
    {
      cout << "Nespravny vstup." << endl;
      return 0;
    }
    //ošetøení vstupu pro input1 cisla
    for (int a=0; a<input1.size(); a++)
    {
        char ch1=input1[a];
        if ((ch1!='0') && (ch1!='1'))
        {
            cout << "Nespravny vstup." << endl;
            return 0;
        }
    }
    //ošetøení vstupu pro input2 cisla
    for (int b=0; b<input2.size(); b++)
    {
        char ch2=input2[b];
        if ((ch2!='0') && (ch2!='1'))
        {
            cout << "Nespravny vstup." << endl;
            return 0;
        }
    }
    //pøevod do desitkove soustavy prvniho cisla

    long long output1 = 0;
    long long weight1 = (1ull << (input1.size() - 1));

    for(int c=0; c < input1.size(); c++) {
    output1 += (input1[c] - '0') * weight1;
    weight1 = weight1 >> 1;
    }
    //pøevod do desitkove soustavy druheho cisla

    long long output2 = 0;
    long long weight2 = (1ull << (input2.size() - 1));

    for(int d=0; d < input2.size(); d++) {
    output2 += (input2[d] - '0') * weight2;
    weight2 = weight2 >> 1;
    }

    //scitame desitkova cisla

    unsigned long long result10=output1+output2;

    //prevod desitkove do binarni

    long long binar = 0;
    long long remainder, i = 1, step = 1;

    while (result10!=0)
    {
        remainder = result10%2;
        result10 /= 2;
        binar += remainder*i;
        i *= 10;
    }

   //vypisujeme vysledek
    cout << "Soucet: " << binar << endl;




    return 0;
}