n = int(input())
res = {}
cur_max = 0
for i in range(n-10,n+11):
    s = str(i)
    cur = 0
    for j in range(1,len(s)):
        if s[j]==s[j-1]:
            cur += 1
    if cur >= cur_max:
        cur_max = cur
        if cur in res:
            res[cur] += ' '+s
        else:
            res[cur] = s
print(res[cur_max])