Flushed stdout after every group is printed in an iteration. #49
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…ows us to redirect ascii based output to a file.
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This allows us to redirect ascii based output to a file. Before the manual flushing, output redirection would cause the program to produce no output. This is because when printing to the console the printf newlines will cause the buffer to flush, but for redirected output the newlines do not trigger the flushing.