n = int(input())
sq = list(map(int,input().split()))

mn = min(sq)
rsq = []
for i in range(mn):
    tsq = []
    for j in sq:
        if j % (i+1) == 0:
            tsq.append(j//(i+1))
        else:
            break
    if len(tsq) == n:
        rsq = tsq
print(":".join([str(i) for i in rsq]))