#include<bits/stdc++.h>
 using namespace std;
#define INF 1000000000
#define REP(i,n) for(int (i)=0;(i)<(int)(n);(i)++)
int main(){
    int A,B,C;
    cin>>A>>B>>C;
    if((A<B&&C<B)||(A>B&&C>B)){
       cout<<"INF"<<endl;
       return 0;
    }
    int count=0;
    REP(i,1000){
        if(i==0)continue;
        int A2=A%i;
        int B2=B%i;
        int C2=C%i;
        if(A2<B2&&C2<B2){
           count++;
        }
        if(A2>B2&&C2>B2){
           count++;
        }
    }
    cout<<count<<endl;
}