#include<iostream>
using namespace std;
class TechNumberChecker
{
    public:
    virtual int isTechNumber(int n)
    {
        return 0;
    }
    virtual int isTechNumber(float f)
    {
        return 0;
    }
};
class Intchecker : public
TechNumberChecker{
    public:

int isTechNumber (int n) override 
{
    if(n<1000 || n>9999)
    return 0;
    int first = n/100;
    int second = n%100;
    int sum = first+second;
    if(sum*sum == n)
    return 1;
    else
    return 0;
}
};
int main()
{
    int keyType;
    if(!(cin>>keyType))
    {
        cout<<"Invalid input";
        return 0;
    }
    if(keyType == 1)
    {
        int num;
        if(!(cin>>num))
        {
            cout<<"Invalid input";
            return 0;
        }
        IntChecker obj;
        cout<<obj.isTechNumber(num);
    }
    else if(keyType == 2)
    {
        float num;
        if(!(cin>>num))
        {
            cout<<"Invalid input";
            return 0;
        }
        FloatChecker obj;
        cout<<obj.isTechNumber(num);
    }
    else
    {
        cout<<-1;
    }
    return 0;
}