#MATL, 8 bytes

1Y4XXXUs

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1Y4      % predefined literal: '\d+'
XX       % implicit input. Match regular expression. Returns a cell array of strings
         % representing numbers
XU       % convert each string to a double. Returns a numeric array
s        % sum of numeric array

MATL, 8 bytes

1Y4XXXUs

Try it online!

1Y4      % predefined literal: '\d+'
XX       % implicit input. Match regular expression. Returns a cell array of strings
         % representing numbers
XU       % convert each string to a double. Returns a numeric array
s        % sum of numeric array

#MATL, 8 bytes

1Y4XXXUs

Try it online!

1Y4      % predefined literal: '\d+'
XX       % implicit input. Match regular expression. Returns a cell array of strings
XU       % convert each string to a double. Returns a numeric array
s        % sum of mumeric array

#MATL, 8 bytes

1Y4XXXUs

Try it online!

1Y4      % predefined literal: '\d+'
XX       % implicit input. Match regular expression. Returns a cell array of strings
         % representing numbers
XU       % convert each string to a double. Returns a numeric array
s        % sum of numeric array

#MATL, 8 10 bytes

1Y4XXXUs

Try it online!

1Y4        % predefined literal: '\d+'
XX         % implicit input. Match regular expression. Returns a cell array of strings
XU         % convert each string to a double. Returns a numeric array
s          % sum of mumeric array

#MATL, 8 bytes

1Y4XXXUs

Try it online!

1Y4      % predefined literal: '\d+'
XX       % implicit input. Match regular expression. Returns a cell array of strings
XU       % convert each string to a double. Returns a numeric array
s        % sum of mumeric array