Sum of integers from a file using perl

open(INFILE, “$ARGV[0]”) or die(“Cannot open file $_[0] for reading: $!”);
my $int ;
my $sum = 0;
while(my $line = <INFILE>) {
chomp($line);
next if($line =~ m/^s$/);
if(int($line)){
$sum = $sum + $line;
}

}
print $sum;

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