#include<cstdio>
#include<algorithm> 
using namespace std;
int main() {
  //freopen("mod.in","r",stdin);
  //freopen("mod.out","w",stdout);
  int a,b,c,cnt=0; scanf("%d %d %d",&a,&b,&c);
  if(((a<b&&c<b)||(a>b&&c>b))&&a!=c) return printf("INF"),0;
  for(int i=1;i<=max({a,b,c});i++) {
  	int b1=a%i,b2=b%i,b3=c%i;
  	if(((b1<b2&&b3<b2)||(b1>b2&&b3>b2))&&b1!=b3) cnt++;
  }
  printf("%d",cnt);
  return 0;
}