import java.util.*;

public class Exercises25{
  public static void main (String[] args){

    Scanner sc = new Scanner(System.in);

    int[] array = new int[3];

    for (int n = 0; n < 3; n++){
      array[n] = sc.nextInt();
    }

    int count = 0;

    if (array[0] == array[1] || array[0] == array[2] || array[1] == array[2]){
      System.out.println(0);
    }else if (array[1] > array[0] && array[1] > array[2] || array[1] < array[0] && array[1] < array[2]){
      System.out.println("INF");
    }else{
      int bigger = Math.max(array[0], array[1]);
      int max = Math.max(bigger, array[2]);
      for (int p = 2; p <= max; p++){
        int first = array[0] % p;
        int second = array[1] % p;
        int third = array[2] % p;

        if (first != third){
          if (second > first && second > third || second < first && second < third){
            count++;
          }
        }
      }
      System.out.println(count);
    }

  }
}