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perl -wle '@a=(1..2_000_000); @b=sort map {scalar gmtime $_} @a; print + "@b[0,1,2,1_999_997,1_999_998,1_999_999]"'
Fri Jan 2 00:00:00 1970 Fri Jan 2 00:00:01 1970 Fri Jan 2 00:00:02 +1970 Wed Jan 21 23:59:57 1970 Wed Jan 21 23:59:58 1970 Wed Jan 21 23: +59:59 1970 34.42user 0.32system 0:35.76elapsed 97%CPU (0avgtext+0avgdata 29949952 +maxresident)k 0inputs+0outputs (122789major+0minor)pagefaults 0swaps