# 3.1
my_name = "Tom"

print(my_name.upper())

# 3.2
my_id = 123
print(my_id)

# 3.3
# _123 = my_id
my_id = your_id = 123
print(my_id)
print(your_id)

# 3.4
my_id_str = '123'
print(my_id_str)

# 3.5
# print(my_name + my_id)

# 3.6
print(my_name + my_id_str)

# 3.7
print(my_name*3)

# 3.8
print('Hello World. This is my first python string.'.split('.'))

# 3.9
message = "Tom's id is 123"
print(message)