#include<iostream>
using namespace std;
bool f(int a,int b,int c){return a==b||b==c||c==a?false:(b-a)*(b-c)>0;}
main(){
	int a[3],m=0,c=0;for(int i=0;i<3;i++)cin>>a[i],m<a[i]?m=a[i]:0;
	if(f(a[0],a[1],a[2])){cout<<"INF"<<endl;return 0;}
	for(int i=2;i<=m;i++)if(f(a[0]%i,a[1]%i,a[2]%i))c++;
	cout<<c<<endl;
}