tee() splits a stream into two branches. It seems straightforward, but the implementation requires buffering: if one branch is read faster than the other, the data must be held somewhere until the slower branch catches up.
Россия нарастила до максимума вывоз одного лакомства08:43
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"Materials analysis, stylistic and thematic similarities, alterations made by Rembrandt, and the overall quality of the painting all support the conclusion that this painting is a genuine work," the gallery said.
连日来，各地区各部门各单位把开展学习教育作为重要政治任务，深入学习贯彻习近平总书记重要讲话和重要指示精神，认真落实党中央部署，精心组织实施，确保学习教育取得实效。
In several cases the staff stated that they did not know: