int nrmaxim(int n){
    static int x = 1;

    static int maxi = n;
    static int mas = n;

    while(n/x>10)
    {
        x *= 10;
    }
    n = (n%10) * x + n/10;

    if(maxi < n)
    {
        maxi = n;
    }
    if(mas==n)
    {
        return maxi;
    }

    return nrmaxim(n);

}