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use warnings; use strict; ... my @parts = $string =~ m/(.{1,$width},)(.{1,$width},)(.{1,$width},)(.* +)/; print join "\n", @parts;
TE=ASR,EV=R,PPF=G1, TG=G1,TMT=P1, RTV=YE,AAT=0, AT=105,ON=Y,CF1=FGOC