P6
#foo
10 10
255
      xxxxxx      xxxxxx            xxxxxx      xxxxxx      xxxxxx      xxxxxx      xxxxxxxxxxxx      xxxxxx      xxxxxx      xxxxxx      xxxxxx            xxxxxx      xxxxxx      xxxxxx      xxxxxx      xxxxxxxxxxxx      xxxxxx      xxxxxx      xxxxxx      xxxxxx            xxxxxx      xxxxxx      
P6
#foo
10 10
255
aaaaaaXXXXXXaaaaaaXXXXXXaaaaaaaaaaaaXXXXXXaaaaaaXXXXXXaaaaaaXXXXXXaaaaaaXXXXXXaaaaaaXXXXXXXXXXXXaaaaaaXXXXXXaaaaaaXXXXXXaaaaaaXXXXXXaaaaaaXXXXXXaaaaaaaaaaaaXXXXXXaaaaaaXXXXXXaaaaaaXXXXXXaaaaaaXXXXXXaaaaaaXXXXXXXXXXXXaaaaaaXXXXXXaaaaaaXXXXXXaaaaaaXXXXXXaaaaaaXXXXXXaaaaaaaaaaaaXXXXXXaaaaaaXXXXXXaaaaaa