n = int(input())
q = list(map(int,input().split()))
i = 0
a = -1
b = 0
w = []
for i in range(0,n):
    if (a==q[i]):
        b += 1
    else:
        w.append(b)
        w.append(a)
        a = q[i]
        b = 1
w.append(b)
w.append(a)
print(*w[2:])