N,K = input().split()
d = [0] + list(map(int,input().split()))
c = d.copy()
N = int(N)
if len(K) > N:
    print(-1)
    exit()
for i in range(N-len(K)):
    K = "0" + K
#print(K)
a = ""
for i0 in range(10):
    for j in range(c[i0]):
        a = a + str(i0)
ans = [a]
s = ""
for i in range(N):
    v = int(K[i])
    if c[v]:
        s = s + str(v)
        c[v] -= 1
        a = s
        for i0 in range(10):
            for j in range(c[i0]):
                a = a + str(i0)
        ans.append(a)
    else:
        break
for i in range(int(K[0])+1,10):
    if d[i]:
        a = str(i)
        d[i] -= 1
        for i0 in range(10):
            for j in range(d[i0]):
                a = a + str(i0)
        ans.append(a)

for v in ans:
    if K < v:
        print(v)
        exit()
print(-1)