import java.util.*;

public class Main {
    private static Scanner sc = new Scanner(System.in);
    public static void main(String[] args) throws Exception {
        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
        
        if (isKadomatsu(a, b, c)) {
            System.out.println("INF");
            return;
        }
        
        int max = Math.max(Math.max(a, b), c);
        
        int ret = 0;
        for (int i = 1;i <= max;i++) {
            if (isKadomatsu(a%i, b%i, c%i)) ret++;
        }
        
        System.out.println(ret);
    }
    
    private static boolean isKadomatsu(int a, int b, int c) {
        return a != c && ((a < b && c < b) || (a > b && c > b));
    }
}