#include<iostream>
using namespace std;
long long sum,a,b,x;
int main()
{
    cin>>a>>b;
    while(cin>>x)
    {
        if(x>0)
        sum+=x;
    }
    cout<<sum+b;
}

AC code 稍微一想，再开个long long就能拿下没有这么简单的橙题