##
while(s/(\w+?)(\1+)//) {
print $` if $`;
my @L = split "(?=$1)", $&;
printf "%s repeated %i time%s\n", $1, $#L+1, $#L ? 's' : ''
}
##
##
perl -wlne 'while(s/(\w+?)\1+//){print$`if$`;@L=split"(?=$1)",$&;printf"%s repeated %i times\n",$1,$#L+1}'