符合条件的代码怎样编写?

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def isSorted(a):
    return all([a[i] <= a[i + 1] for i in range(len(a) - 1)])

arr = input("")
list = [int(n) for n in arr.split()] 
if(isSorted(list)):
    print("The list is already sorted")
else:
    print("The list is not sorted")