# 1 2 3
#23456789012345678901234567890123456
$a=ord(L)-ord(A);print$a.$/while$a-- # wrong one
$a++for(a..j);print$a--.$/for(a..j)
update 1 sorry the first one prints from 10 to 0.
Fixed the second one.
update 2
These ones are too long, but intriguing.
perl -e '$b++;$a=hex--$b.xA;print$a--.$/for(a..j)'
perl -e '$a=++$b.$[;print$a--.$/for(a..j)'
update 3
This one seems to be short enough (30)
# 1 2 3
#23456789012345678901234567890
$a=hex(A);print$a--.$/for+a..j
$a=hex+A;print$a--.$/for+a..j # (29) with a warning
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