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%hash = qw/a 1 b 2 c 3 d 4 e 5/; ... Key: a = 1 Key: b = 2 Key: d = 4
%hash = qw/a 5 b 4 c 3 d 2 e 1/; ... 3 2 1
perl> %hash = qw/a 5 b 4 c 3 d 2 e 1/; ... 3 4 5