#coding: utf-8
#yuki358
import sys

a=map(int,raw_input().split())
if (not a[0]==a[2]) and ((a[1]<a[0] and a[1]<a[2]) or (a[1]>a[0] and a[1]>a[2])):
 print "INF"
 sys.exit()
if a[0]==a[1] or a[1]==a[2] or a[0]==a[2]:
 print 0
 sys.exit()

p=max(a)+1
cnt=0
b=[0 for i in xrange(3)]
for i in xrange(2,p):
 b[0]=a[0]%i
 b[1]=a[1]%i
 b[2]=a[2]%i
 if (b[1]==max(b) or b[1]==min(b)) and not (b[0]==b[1] or b[1]==b[2] or b[0]==b[2]):
  cnt+=1
else:
 print cnt