[백준] 5565번 : 영수증 - Javascript(자바스크립트)

https://www.acmicpc.net/problem/5565

const fs=require('fs')
ip=fs.readFileSync(0).toString().split('\n')
sum=parseInt(ip[0])
for(i=1;i<=9;i++){
    a=parseInt(ip[i])
    sum-=a
}
console.log(sum)