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#! /bin/sh
perl -E '$/ = \36; for (1 .. 200e6) { ($v,$s) = unpack q<QA*>,<>; say 
+qq($_ @{[$s =~ y/a-zA-Z//cdr || redo]} $v) }' /dev/urandom |
sort -k2 | perl -ape '$_ x= $F ne $F[1], $F = $F[1]' |
sort -k3 | perl -ape '$_ x= $F ne $F[2], $F = $F[2]' |
sort -n  | perl -pe 's/\S*\s*//'

$ perl -anE '$h[length$F[0]]++ }{ say "@h";' data
 52 2704 140608 7190883 35010259 35855576 28751420 19240344 10899542 5
+278104 2202814 795438 249757 68269 16155 3388 640 89 12  1

[         1.303844] data ALLOCATED; tab = 160002048, ss = 14680064 (10
+000000 pairs)
[         5.478031] built BDZ for syms
...
[         2.940386] VALS fetch; found=10000000
[         2.709484] VRFY sym to val; matched=10000000
[         4.258673] VRFY two-way; matched=10000000

$ ./a.out 10000000 data
[0000000000.000000] begin
...
[0000000004.366025] VALS search and compare
cksum=49999995000000
[0000000000.000012] done.