# 27421
# f = open('C:/Users/darya/Downloads/24_demo.txt')
# s = f.read()
# count = 0
# maximum = 0
# for i in range(0, len(s)):
#     if s[i-1] != s[i]:
#         count += 1
#     else:
#         if count > maximum:
#             maximum = count
#         count = 1
#
# if count > maximum:
#     maximum = count
# print(maximum)

# 27686
# f = open('C:/Users/darya/Downloads/24_demo (1).txt')
# s = f.read()
# count = 0
# maximum=0
# for i in range(len(s)):
#     if s[i] == 'X':
#         count += 1
#     else:
#         maximum = max(maximum, count)
#         count = 0
# maximum = max(maximum, count)
# print(maximum)

# 27689
# f = open('C:/Users/darya/Downloads/24_demo.txt')
# count = 0
# maximum = 0
# s = f.read()
# for i in range(len(s)):
#     if s[i] == 'X' and count % 3 == 0:
#         count += 1
#     elif s[i] == 'Y' and count % 3 == 1:
#         count += 1
#     elif s[i] == 'Z' and count % 3 == 2:
#         count += 1
#     else:
#         maximum = max(count, maximum)
#         count = 0
# maximum = max(count, maximum)
# print(maximum)

# 27694
# f = open('C:/Users/darya/Downloads/zadanie24_1.txt')
# s = f.read()
# count = 0
# maximum = 0
# for i in range(len(s)):
#     if s[i] == 'A' and count % 2 == 0:
#         count += 1
#     elif s[i] == 'B' and count % 2 == 1:
#         count += 1
#     else:
#         maximum = max(count, maximum)
#         count = 0
# maximum = max(count, maximum)
# print(maximum)
#
# РАЗОБРАТЬ 29672