def max_p(ind):
    st = []
    i = ind
    j = -1
    op = '({['
    while i < len(s):
        if s[i] in op:
            st.append(s[i])
        else:
            if len(st) < 1:
                break
            t = st.pop()
            if (t == '(' and s[i] == ')') or (t == '[' and s[i] == ']')\
               or (t == '{' and s[i] == '}'):
                if len(st) == 0:
                    j = i
            else:
                return j
        i += 1
    return j

s = input('Введите строку: ')
res = 0
lr = []
op = '({['
for k in range(len(s)):
    if s[k] in op:
        ans = max_p(k)
        if ans - k + 1 > res:
            lr = []
            lr.append([k, ans])
            res = ans - k + 1
        elif ans - k + 1 == res:
            lr.append([k, ans])
print('борик выбирай: ')
for k in range(len(lr)):
    print(s[lr[k][0]:lr[k][1] + 1], lr[k][0], lr[k][1],\
          lr[k][1] - lr[k][0] + 1)