d1 = str(input()) an = str(len(d1)) n = 1 for i in range(2, len(d1) + 1): d1 += str(input()) if d1[0] == '1': an += " 0"

for i in range(0, len(d1) - 1): if d1[i] != d1[i + 1]: an += " " + str(n) n = 1 else: n += 1 an += " " + str(n) print(an)