use v5.16;

# my $L = 100;
# my $N = 10;
# my $W = "14 85 77 26 50 45 66 79 10 3";

my $L = <>;
my $N = <>;
my $W = <>;
chomp( $L, $N, $W );

my @W = sort ( split / /, $W );

while ( my ( $i, $e ) = each @W ) {
    $L = $L - $e;
    if ( $L < 0 ) {
        say $i;
        last;
    }
}