encrypting documents and other files
Even Benjamin Franklin's face on a piece of paper can feel like a mere proxy
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Finish: 47.94505, 7.73573
非比较排序，适用于整数且范围不大的情况：
A method is described for the manufacture of pivoting colloidal assemblies comprising rotating diamond and rotating triangle geometries that show tunable folding and unfolding by thermal fluctuations and actuation by magnetic attractions.