String formatting

Question

# string formatting
nums = [4, 5, 6]
msg = "Numbers: {} {} {}". format(nums[0], nums[1], nums[2])
print(msg)

output: Numbers: 4 5 6

Answer 1

Yea, I know but what are the differences compare to below program

# string formatting
nums = [4, 5, 6]
msg = "Numbers: {0} {1} {2}". format(nums[0], nums[1], nums[2])
print(msg)