B_Egal

int Egal(int n)
{
    int x = -1;
    while(n)
    {
        int c = n % 10;
        if(c % 2 == 1)
        {
            if(x == -1)
                x = c;
            else
                if(x != c)
                    return 0;
        }
        n /= 10;
    }
    return 1;
}