BEGIN { $/ = "\n"; $\ = "\n"; }
LINE: while (defined($_ = <ARGV>)) {
    chomp $_;
    our(@F) = split(//, $_, 0);
    $D[-1] = {%{$D[-1]}, @F} unless @F % 2 and push @D, {'Stamp', @F};
}
{
    $, = ',';
    print @{$_}{'Stamp', 'Login', 'searchload'} foreach (@D);
}