def chk(a,b,c)
    a!=b && a!=c && b!=c && ([a,b,c].min == b || [a,b,c].max == b)
end
a,b,c=gets.split.map(&:to_i)
if chk(a,b,c)
    puts "INF"
    exit
end
count = 0
(1..1000).each{|p|
    count += 1 if chk(a%p, b%p, c%p)
}
puts count