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#!/usr/bin/env perl ... print "ID for MORE[foo]: $dat_by_id{$map_more_to_id{foo}}{id}\n"; print "SN for MORE[bar]: $dat_by_id{$map_more_to_id{bar}}{sn}\n";
SN for ID[1]: a ID for SN[b]: 2 MORE for SN[a]: foo ID for MORE[foo]: 1 SN for MORE[bar]: b