# i = 0
#
# while i <= 25:
#     i += 1
#     if i > 14:
#         i += 2
# print(i)

# i = 0
# S = 0
#
# while i < 10:
#
#
#     i+=1
#     S += i
#     if S >15:
#         continue
#
#     i += 1
#
# print(S, i)

# st = ["A", "D", "M", "F",]
# st += ["Bl"]
# st += 'red'
#
# st.append('revv')
#
# print(st)

# a = [1, 2, 3]
# b = a
#
# a[1] = 10
# b[0] = 20
# print(a, b)

