лабы / лаб5 / lab5_dop

max_str = ''
n = 203
for i in range(n+1):
    h = list(203 * '1')
    h.insert(i,'2')
    s = ''.join(h)

    while '111' in s or '222' in s:
        if '111' in s: s = s.replace('111','22',1)
        else: s = s.replace('222','11',1)

    if len(s) > len(max_str): max_str = s

print(max_str)