Standard input is empty

For sem chaves: 
For sem chaves: 1
For sem chaves: 2
For sem chaves: 3
For sem chaves: 4
For sem chaves: 5
For sem chaves: 6
For sem chaves: 7
For sem chaves: 8
For sem chaves: 9
While sem chaves: 0
While sem chaves: 1
While sem chaves: 2
While sem chaves: 3
While sem chaves: 4
While sem chaves: 5
While sem chaves: 6
While sem chaves: 7
While sem chaves: 8
While sem chaves: 9

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