def Sort(lst):
    for i in range(1, len(lst)):
        key = lst[i]
        j = i - 1
        while j >= 0 and key < lst[j]:
            lst[j + 1] = lst[j]
            j -= 1
        lst[j + 1] = key
lst = [4,5,13,2,7,10,1,3,8,11,6,9,12]
lst = Sort(lst)
print("sorted list:", lst)