#include <iostream>
#include <fstream>

using namespace std;

int znajdz_tekst(string a, string b)
{
    unsigned a_size = a.size();
    unsigned b_size = b.size();

    bool flaga;

    for(unsigned i = 0; i <= (a_size - b_size); i++)
    {
        for(unsigned j = 0; j < b_size; j++)
        {
            flaga = true;
            if(a[i + j] != b[j])
            {
                flaga = false;
                break;
            }
        }
        if(flaga)
            return i;
    }

    return -1;
}

int main()
{
    cout << znajdz_tekst("ABCDEFGH", "DEFGZ")  << endl;

    return 0;
}