import java.util.*;

public class Main {
 	public static void main (String[] args) {
		Scanner sc = new Scanner(System.in);
		int max = 0;
		int a = sc.nextInt();
		int b = sc.nextInt();
		int c = sc.nextInt();
		if ((b > a && b > c && a != c) || (b < a && b < c && a != c)) {
		    System.out.println("INF");
		    return;
		}
		max = Math.max(max, a);
		max = Math.max(max, b);
		max = Math.max(max, c);
		int count = 0;
		for (int i = 3; i <= max; i++) {
		    int pa = a % i;
		    int pb = b % i;
		    int pc = c % i;
    		if ((pb > pa && pb > pc && pa != pc) || (pb < pa && pb < pc && pa != pc)) {
    		    count++;
    		}
		}
	    System.out.println(count);
	}
}