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  1. # your code goes here
  2. t = int(raw_input())
  3. for h in range(t):
  4. m = [int(x) for x in raw_input().split()]
  5. x,y = m[0],m[1]
  6. x = list(str(x))
  7. y = list(str(y))
  8. x.reverse()
  9. y.reverse()
  10. x1,y1 = '',''
  11. #print x,y
  12. for i in x:
  13. #print i,
  14. x1+=i
  15. for i in y:
  16. y1+=i
  17. #print x1,y1
  18. k = list(str(int(x1)+int(y1)))
  19. k.reverse()
  20. #print k
  21. s = ''
  22. for i in k:
  23. s+=i
  24. print int(s)
Success #stdin #stdout 0s 23304KB
stdin
3
24 1
4358 754
305 794
stdout
34
1998
1