import algorithm,sequtils,strutils,math
var
  n=parseInt(readline(stdin))
  a=map(split(readline(stdin)),parseInt)
  b:seq[int]= @[]
  q=a[0]
for i in countup(1,n-1):
  q=gcd(a[i],q)
for i in a:
  b &= i div q
echo b.join(":")