#include    <iostream>
#include    <fstream>

using namespace std;

ifstream fin("fisier.in");
/*
 * V[3] - v[0] v[1] v[2]
 * Numar prim
 * CMMDC
 * Factori primi
 * Descompunerea unui nr in cifre (suma, palindrom, ...)
 * Fibonacci
 * Vectori (inserare, stergere, ...)
 * Matrici (parcurgere pe coloane)
 */

int AP[10];
int PozAP[10];

int main()
{
    int nr, contor = 1;
    while(fin >> nr)
    {
        int uc = nr % 10;
        AP[uc]++;
        PozAP[uc] = contor;

        contor++;
    }

    int max = 0;

    for(int i = 0; i <= 9; i++)
        if(AP[i] > max)
            max = AP[i];

    for(int i = 0; i <= 9; i++)
        if(AP[i] == max)
            cout << PozAP[i] << " ";

    return 0;
}