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  1. str=[int(i) for i in input().split()]
  2. list=[]
  3. n=len(str)
  4. if len(str) == 0 : exit()
  5. if len(str) == 1 :
  6. list.insert(0,str)
  7. print(int(str[0]))
  8. exit()
  9. for i in range(1,n-1):
  10. list.insert(i,(str[i-1]+str[i+1]))
  11. #print(list)
  12. exit
  13. first = str[-1]+str[1]
  14. list.insert (0,first)
  15. #print(list)
  16.  
  17. last = str[-2]+str[0]
  18. list.append(last)
  19. #print(list)
  20.  
  21. for i in list:
  22. print(i, end=" ")
Success #stdin #stdout 0.03s 9280KB
stdin
1 3 5 6 10
stdout
13 6 9 15 7