#include<bits/stdc++.h>
using namespace std;
#define rep(i,n) for(ll i=0;i<n;i++)
#define repl(i,l,r) for(ll i=(l);i<(r);i++)
#define per(i,n) for(ll i=(n)-1;i>=0;i--)
#define perl(i,r,l) for(ll i=r-1;i>=l;i--)
#define fi first
#define se second
#define pb push_back
#define ins insert
#define pqueue(x) priority_queue<x,vector<x>,greater<x>>
#define all(x) (x).begin(),(x).end()
#define CST(x) cout<<fixed<<setprecision(x)
#define rev(x) reverse(x);
using ll=long long;
using vl=vector<ll>;
using vvl=vector<vector<ll>>;
using pl=pair<ll,ll>;
using vpl=vector<pl>;
using vvpl=vector<vpl>;
const ll MOD=1000000007;
const ll MOD9=998244353;
const int inf=1e9+10;
const ll INF=4e18;
//const ll dy[8]={-1,0,1,0,1,1,-1,-1};
//const ll dx[8]={0,-1,0,1,1,-1,1,-1};
template<class T> inline bool chmin(T& a, T b) {
    if (a > b) {
        a = b;
        return true;
    }
    return false;
}
template<class T> inline bool chmax(T& a, T b) {
    if (a < b) {
        a = b;
        return true;
    }
    return false;
}

int main(){
    ll a,b,c;cin >> a >> b >> c;
    if(gcd(a,gcd(b,c))!=1)cout << "INF" <<endl;
    vector<bool> dp(2000*2000);
    vl v={a,b,c};
    dp[0]=true;
    rep(i,3){
        rep(j,2000*2000){
            if(dp[j]&&j+v[i]<2000*2000)dp[j+v[i]]=true;
        }
    }
    ll ans=0;
    rep(i,2000*2000){
        if(!dp[i])ans++;
    }
    cout << ans <<endl;
}