auto save

diy2.py

-alist=[12,15,20,17,9,13]
-n=len(alist)
-for i in range(n-1):
-    for l in range(n-1):
-        if alist[l]>alist[l+1]:
-            alist[l],alist[l+1]=alist[l+1],alist[l]
-    print(alist)        
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+ list_
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