nums = [1, 2, 3]
for num in nums:
    print(num)

nums = [1, 2, 3]
for i in range(nums):
    print(nums[i])

nums = [1, 2, 3]
for i in nums:
    print(nums[i])

nums = [1, 2, 3]
for i in range(len(nums)-1):
    print(nums[i])