IntToArray

    int array[25];
    int  number=0, s = 1;
    scanf_s("%d", number);
    for (int i = 24; i >= 0; i--)
    {
        array[i] = number % 10;
        number /= 10;
        if (array[i] % 2 == 0)
        {
            continue;
        }
        else
        {
            s *= array[i];
        }
    }
    printf_s("%d", s);