#include<stdio.h>
int main ()
{
int a,b,c,d,i,n;
freopen("ecu2.in","r",stdin);
freopen("ecu2.out","w",stdout);

scanf("%d",&n);

for(i=1;i<=n;i++)
	
{
scanf("%d%d%d",&a,&b,&c);
if (a==0)
	if (b==0) 
		if(c==0)
			printf("INF ");
		else 
			printf("0 ");
	else 
		printf("1 ");

else 
	{
	d=b*b-4*a*c;
	if (d<0) printf("0 ");
	if (d==0) printf("1 ");
	if (d>0) printf("2 ");
      }


}
return 0;
}