#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for(int i = 0; i < n; i++)
#define rep2(i, x, n) for(int i = x; i <= n; i++)
#define rep3(i, x, n) for(int i = x; i >= n; i--)
#define each(e, v) for(auto &e: v)
#define pb push_back
#define eb emplace_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define sz(x) (int)x.size()
using ll = long long;
using pii = pair<int, int>;
using pil = pair<int, ll>;
using pli = pair<ll, int>;
using pll = pair<ll, ll>;
const int MOD = 1000000007;
//const int MOD = 998244353;
const int inf = (1<<30)-1;
const ll INF = (1LL<<60)-1;
template<typename T> bool chmax(T &x, const T &y) {return (x < y)? (x = y, true) : false;};
template<typename T> bool chmin(T &x, const T &y) {return (x > y)? (x = y, true) : false;};

struct io_setup{
    io_setup(){
        ios_base::sync_with_stdio(false);
        cin.tie(NULL);
        cout << fixed << setprecision(15);
    }
} io_setup;

int main(){
    int A, B, C;
    cin >> A >> B >> C;
    int g = 0;
    g = gcd(g, A), g = gcd(g, B), g = gcd(g, C);
    if(g != 1) {cout << "INF\n"; return 0;}
    if(A == 1 || B == 1 || C == 1) {cout << "0\n";}

    int MAX = 10000000;
    vector<bool> used(MAX, false);

    rep(i, B){
        rep(j, A){
            int k = A*i+B*j;
            used[k] = true;
        }
    }
    int D = gcd(A, B);
    rep(i, MAX){
        if(i >= A*B && i%D == 0) used[i] = true;
    }
    
    vector<bool> used2(C, false);
    rep(i, MAX){
        if(used2[i%C]) used[i] = true;
        else if(used[i]) used2[i%C] = true;
    }

    int ans = 0;
    rep(i, MAX){
        if(!used[i]) ans++;
    }
    cout << ans << '\n';
}