import sys
input = lambda :sys.stdin.readline()[:-1]
ni = lambda :int(input())
na = lambda :list(map(int,input().split()))
sys.setrecursionlimit(10**7)
yes = lambda :print("yes");Yes = lambda :print("Yes");YES = lambda : print("YES")
no = lambda :print("no");No = lambda :print("No");NO = lambda : print("NO")
#######################################################################


n = ni()
a = [i-1 for i in na()]
b = n-1
z = []
ans = []

v = [0 for i in range(n)]
def f(b):
    for j in range(b-1,-1,-1):
        if v[j]:continue
        return j
    return -1


for i in range(n):
    #print(i, a[i], b)
    v[a[i]] = 1
    if a[i]==b:
        if len(z)==0:
            No()
            exit()
        #print(i)
        for j in range(len(z)-1):
            ans.append(z.pop()+1)
        ans.append(b+1)
        b = f(b)
        if i!=n-1 and len(z)!=0 and b==z[0]:
            No()
            exit()
    else:
        z.append(a[i])
Yes()
print(*ans)