#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
constexpr int Inf = 1000000030;
constexpr ll INF= 2000000000000000000;
constexpr ll MOD = 1000000007;
const double PI = 3.1415926535897;
typedef pair<ll,ll> P;
typedef pair<ll,P> PP;

template<class T> inline bool chmax(T &a, T b) {
    if (a < b) {
        a = b;
        return 1;
    }
    return 0;
}

template<class T> inline bool chmin(T &a, T b) {
    if (a > b) {
        a = b;
        return 1;
    }
    return 0;
}

ll mod(ll val, ll M) {
    val = val % M;
    if(val < 0) {
        val += M;
    }
    return val;
}

template<typename T>
T RS(T N, T P, T M){
    if(P == 0) {
        return 1;
    }
    if(P < 0) {
        return 0;
    }
    if(P % 2 == 0){
        ll t = RS(N, P/2, M);
        if(M == -1) return t * t;
        return t * t % M;
    }
    if(M == -1) {
        return N * RS(N,P - 1,M);
    }
    return N * RS(N, P-1, M) % M;
}

int main() {
    int A,B,C;
    cin >> A >> B >> C;
    if(gcd(A,gcd(B,C)) != 1) cout << "INF" << endl;
    else {
        vector<bool> cnt(4002110);
        cnt.at(0) = true;
        for(int i = 0;i <= 4000000;i++) {
            if(cnt.at(i)) {
                cnt.at(i + A) = true;
                cnt.at(i + B) = true;
                cnt.at(i + C) = true;
            }
        }
        int ret = 0;
        for(int i = 0;i <= 400000;i++) {
            if(!cnt.at(i)) ret++;
        }
        cout << ret << endl;
    }
}