def calc(x):
    score=1
    for i in range(1,N):
        if A[i]//x!=A[i-1]//x:
            score+=1
    return score*(x+1)

def calc2(x):
    score=1
    now=A[0]//x
    OK=0
    
    while True:
        NG=len(A)

        while NG>OK+1:
            mid=(OK+NG)//2

            if A[mid]//x==now:
                OK=mid
            else:
                NG=mid

        if NG==len(A):
            break
        else:
            score+=1
            now=A[NG]//x
            OK=NG

    return score*(x+1)
        
    


N=int(input())
A=list(map(int,input().split()))

ANS=1<<100
IND=-1

for i in range(1,100):
    k=calc(i)

    if k<ANS:
        ANS=k
        IND=i

for i in range(100,ANS+1):
    k=calc2(i)

    if k<ANS:
        ANS=k
        IND=i
    if i>ANS:
        break

print(IND)
print(ANS)