#include<iostream>
using namespace std;

class TechNumberChecker {
    public:
    virtual int isTechNumber(int n)
    {
        return 0;
    }
    virtual int is TechNumber(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;
    }
    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;
}
}
    }
}