程序代码：

int main()
{
    int a[10] = {0};
    int n;
    while (cin >> n)
    {
        ++a[n % 10];
    }
    int value = 0;
    int count = 0;
    int b[10];
    for (int i = 0; i < 10; ++i)
    {
        if (value < a[i])
        {
            value = a[i];
            count = 1;
            b[count - 1] = i;
        }
        else if (value == a[i])
        {
            ++count;
            b[count - 1] = i;
        }
    }

    for (int i = 0; i < count; ++i)
    {
        cout << b[i] << " ";
    }
    cout << endl;
    return 0;
}