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2014-05-29T10:53:31-03:00
[(5+12)-6]x2+45/5+1
[17-6]x2+45/5+1
11x2+45/5+1
22+9+1
31+1
32
1 5 1
2014-05-29T10:54:20-03:00
[(5+12)-6]x2+45/5+1
[17-6]x2+45/5+1
11x2+45/5+1
22+9+1
31+1
32