There is a file attached that contains multiple lines. On each alternating line you will find a double and then a boolean.

Your task: Sum all doubles that are followed by a true value, and ignore all values that are followed by a false value.

the file is called "Problem13"

The text file has this inside of it:

0.35057989617641006 false 0.4011745518570221 true 0.8704329175145333 false 0.5005129666820816 false 0.7180188199150055 true 0.49528176330332896 true 0.619406521897445 false 0.12286890045943932 false 0.9600368538079368 true 0.6225288689441805 true 0.4915916606255619 true 0.3599636189832842 false 0.7679810581020672 true 0.14545305067452552 true