或者更好的办法是，用树木做成的纸张将它们打印出来。
Or, even better, print them out on paper, the kind made from trees.
每行都按给定的树木尺寸和所在位置打印出可见的树木数量。
Each line will consist of the number of trees of the given size, visible from the given position.
节约纸张、油墨和树木-请在确实需要时再打印此邮件。
Save paper, ink and trees - Please don't print this email unless you really need to.
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