Question: order of elements in lists


I have a list N with i elements, for example N:=[7,2,4] with i = 3. From another list L I know, that all the elements of N are also elements of L, but I don't know if they are in the same order. For example:

In L1=[2,6,5,7,3,2,9,4] the elements are in the same order, but they are not in L1=[2,1,4,2,6,7,3,9]. 

How to write a program that can say wether the elements are in the correct order or not?

Thanks for your help!

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