import sys
input=lambda: sys.stdin.readline().rstrip()
A=[int(i) for i in input().split()]
def chk(A):
  if A[1]<A[0] and A[1]<A[2] and A[0]!=A[2]:
    return True
  elif A[1]>A[0] and A[1]>A[2] and A[0]!=A[2]:
    return True
  else:
    return False


if chk(A):
  print("INF")
else:
  ans=0
  for i in range(1,max(A)+1):
    B=[]
    for a in A:
      B.append(a%i)
    if chk(B):
      ans+=1
  print(ans)