元祖

print("----")
dimensions = (200,50)
print(dimensions[0])
print(dimensions[1])

# dimensions[0] = 250
print("----")
dimensions = (200,50)
for dimension in dimensions:
	print(dimension)

print("----")
dimensions = (200,50)
print("Original dimensions:")
for dimension in dimensions:
	print(dimension)
	
dimensions = (400,100)
print("Modified dimensions:")
for dimension in dimensions:
	print(dimension)
	
print("----")
dimensions = ('asdf','2ss')
print("Modified dimensions:")
for dimension in dimensions:
	print(dimension)

print("====")
dimensions = ('香辣肉丝','麻辣香锅','锅包肉','酱茄子','地三鲜')
for value in dimensions:
	print(value)

# dimensions[0] = "麻婆豆腐"

dimensions = ('麻辣烫','京酱肉丝','锅包肉','酱茄子','地三鲜')
for value in dimensions:
	print(value)