import java.util.*;


public class Main_yukicoder358 {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int[] a = new int[3];
        int max = 0;
        a[0] = sc.nextInt();
        max = Math.max(max, a[0]);
        a[1] = sc.nextInt();
        max = Math.max(max, a[1]);
        a[2] = sc.nextInt();
        max = Math.max(max, a[2]);

        if (isKado(a)) {
        	System.out.println("INF");
        } else {
        	int ret = 0;
        	for (int p = 1; p <= max; p++) {
        		int[] tmp = new int[3];
        		tmp[0] = a[0] % p;
        		tmp[1] = a[1] % p;
        		tmp[2] = a[2] % p;
        		if (isKado(tmp)) {
        			ret++;
        		}
        	}

        	System.out.println(ret);
        }

        sc.close();
    }

	private static boolean isKado(int[] a) {
		if (a[0] == a[1] || a[1] == a[2] || a[2] == a[0]) {
			return false;
		}

		if (a[1] > a[0] && a[1] > a[2]) {
			return true;
		}
		if (a[1] < a[0] && a[1] < a[2]) {
			return true;
		}

		return false;
	}
}