A=map(int,raw_input().split())
MA= max(A)
if A[0]==A[1] or A[1]==A[2] or A[0]==A[2]:
    print 0
elif A[0]<A[1] and A[1]>A[2]:
    print "INF"
elif A[0]>A[1] and A[1]<A[2]:
    print "INF"
else:
    ans=0
    for i in range(1,MA+1):
        B=map(lambda x:x%i,A)
        if B[0]==B[1] or B[1]==B[2] or B[0]==B[2]:
           continue
        if B[0]<B[1] and B[1]>B[2]:
           ans+=1
        elif B[0]>B[1] and B[1]<B[2]:
           ans+=1
    print ans