#include <algorithm>
#include <cstdio>
#include <cstdlib>
#include <cctype>
#include <cmath>
#include <iostream>
#include <queue>
#include <list>
#include <stack>
#include <map>
#include <numeric>
#include <set>
#include <sstream>
#include <string>
#include <vector>
using namespace std;
#define REP(i,a,n) for(int i=(a); i<(int)(n); i++)
#define rep(i,n) REP(i,0,n)
#define FOR(it,c) for(__typeof((c).begin()) it=(c).begin(); it!=(c).end(); ++it)
#define ALLOF(c) (c).begin(), (c).end()
typedef long long ll;

int main(){
  int A1, A2, A3;
  cin >> A1 >> A2 >> A3;
  if((A1 > A2 && A2 < A3) || (A1 < A2 && A2 > A3)){
    cout << "INF" << endl;
  }else{
    int ret = 0;
    REP(p,1,2000){
      if((A1%p > A2%p && A2%p < A3%p) || (A1%p < A2%p && A2%p > A3%p)){
        if(A1%p!=A2%p && A1%p!=A3%p && A2%p!=A3%p){
          ret++;
        }
      }
    }
    cout << ret << endl;
  }
  
  return 0;
}