#include "bits/stdc++.h"
using namespace std;
#define FOR(i,j,k) for(int (i)=(j);(i)<(int)(k);++(i))
#define rep(i,j) FOR(i,0,j)
#define each(x,y) for(auto &(x):(y))
#define mp make_pair
#define all(x) (x).begin(),(x).end()
#define debug(x) cout<<#x<<": "<<(x)<<endl
#define smax(x,y) (x)=max((x),(y))
#define smin(x,y) (x)=min((x),(y))
#define MEM(x,y) memset((x),(y),sizeof (x))
#define sz(x) (int)(x).size()
typedef long long ll;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<ll> vll;

bool check(vi v){
    if(v[0] == v[1] || v[1] == v[2] || v[2] == v[0])return false;
    return (v[0] < v[1] && v[1]>v[2]) || (v[0] > v[1] && v[1] < v[2]);
}

int main(){
    ios::sync_with_stdio(0);
    cin.tie(0);
    vi A(3), B(3);
    while(cin >> A[0] >> A[1] >> A[2]){
        if(check(A)){
            cout << "INF" << endl;
        } else{
            int answer = 0;
            for(int i = 1; i <= 1000; ++i){
                rep(j, 3)B[j] = A[j] % i;
                if(check(B))++answer;
            }
            cout << answer << endl;
        }
    }
}