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C:\test>dir 1123355.bin
14/04/2015  16:50        16,777,216 1123355.bin

C:\test>1159245 1123355.bin
Took 12.897612 secs

C:\test>1159245 1123355.bin
Took 3.832763 secs
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♥ : 44106
♦ : 43878
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#! perl -slw
use strict;
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printf "%c : %u\n", $_, $seen[$_] for 0 .. 255;