#include <iostream>
#include <string>
#include <cstring>
#include <algorithm>

using namespace std;

int main()
{
    string megaslovo, slovo1, slovo2, slovo3;
    int a = 0;
    bool proof1 = true;

    cout << "Zadejte 3 slova:" << endl;
    getline(cin, megaslovo);

    for (unsigned int i=0; i < megaslovo.length(); i++)
    {

        if (megaslovo[i] == ' ' && proof1 == true)
        {
            slovo1 = megaslovo.substr(a,i);
            megaslovo = megaslovo.replace(i, 1, "#");
            a = i+1;
            proof1 = false;
        }

        if (megaslovo[i] == ' ')
        {
            slovo2 = megaslovo.substr(a, i - slovo1.length() - 1);
            slovo3 = megaslovo.substr((slovo1.length() + slovo2.length())+2, megaslovo.length());
            a = i + 1;
        }
    }


    if ((slovo1.length() < 1) || (slovo2.length() < 1) || (slovo3.length() < 1))
    {
        cout << "Nespravny vstup." << endl;
        return 1;
    }


    for (unsigned int i = 0; i < slovo1.length(); i++)
    {
        if (slovo1[i] >= 'A' and slovo1[i] <= 'Z')
        {
            slovo1[i] = slovo1[i] + 32;
        }
    }

    for (unsigned int i = 0; i < slovo2.length(); i++)
    {
        if (slovo2[i] >= 'A' and slovo2[i] <= 'Z')
        {
            slovo2[i] = slovo2[i] + 32;
        }
    }

    for (unsigned int i = 0; i < slovo3.length(); i++)
    {
        if (slovo3[i] >= 'A' and slovo3[i] <= 'Z')
        {
            slovo3[i] = slovo3[i] + 32;
        }
    }


    if ((slovo1) == (slovo2))
    {
        cout << "Slovo1 a slovo2 jsou stejna." << endl;
    }
    else cout << "Slovo1 a slovo2 nejsou stejna." << endl;


    if ((slovo1) == (slovo3))
    {
        cout << "Slovo1 a slovo3 jsou stejna." << endl;
    }
    else cout << "Slovo1 a slovo3 nejsou stejna." << endl;

    if ((slovo2) == (slovo3))
    {
        cout << "Slovo2 a slovo3 jsou stejna." << endl;
    }
    else cout << "Slovo2 a slovo3 nejsou stejna." << endl;

    cout << "Pocet znaku ve slovo1 je: " << slovo1.length() << endl;
    cout << "Pocet znaku ve slovo2 je: " << slovo2.length() << endl;
    cout << "Pocet znaku ve slovo3 je: " << slovo3.length() << endl;

    return 0;
}