RosettaCodeData/Task/Sort-stability/Mathematica/sort-stability-1.math

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mylist = {{1, 2, 3}, {4, 5, 6}, {5, 4, 3}, {9, 5, 1}};
Sort[mylist, (#1[[2]] < #2[[2]]) &]
#[[Ordering[#[[All, 2]]]]] &[mylist]