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import java.util.Random;

import java.io.*;

class sum{

public static void main(String args[]){

try

{

File file = new File("tensu.csv");

FileReader fr = new FileReader(file);

BufferedReader br = new BufferedReader(fr);

String datas = br.readLine();

String[] str1Ary = datas.split(",");

int [] idatas=new int[str1Ary.length];

int num = 0;

for (int i=0; i<str1Ary.length; i++)

{

idatas[i]=Integer.valueOf(str1Ary[i]).intValue();

num = num + idatas[i];

}

System.out.println(num);

br.close();

}

catch(Exception e)

{

System.out.println(e.toString());

}

}

}