#include

#include

using namespace std;

double sum$($ifstream in$)/*$ Fix this code line $*/$

$\{$

double total $=0$;

double input;

while $($in $>>$ input$)\{$ total $=$ total $+$ input; $\}$

return total;

$\}$

int main$()$

$\{$

string filename;

cin $>>$ filename;

ifstream in$($filename$)$;

cout $<<$ sum$($in$)<<$ endl;

return $0$;

$\}$