remainder fact

t = int(input())

li=[]
for i in range(t):
    a=int(input())
    li.append(a)

a= sorted(li)[-1]

d=0

for i in range(2,a+1):
    c=0
    for k in range(1,t):
        if li[k]%i==li[k-1]%i:
            c+=1
            #print(c)
    if c==(t-1):
        print(i,end=" ")