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use strict; use warnings; ... } print join ("\t", @$_), "\n" for sort {$a->[0] cmp $b->[0]} @merged;
A "Monday" 325 908 "Jim" A "Monday" 423 383 "Sally" A "Monday" 993 421 "Jim" C "Wednesday" 426 907 "Mike" C "Wednesday" 737 432 "Mary"