#include <iostream>
using namespace std;
double a, b, c, delta;
int main(void)
{
int x;
while(cin>>x){
cin>>a>>b>>c;
delta=b*b-4*a*c;
if(delta==0)
cout<<1<<endl;
else if(delta>0)
cout<<2<<endl;
else
cout<<0<<endl;
}
return 0;
}
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