sum of chocolates

#include <bits/stdc++.h>
using namespace std;
#define ll long long
int main(){
    ll n,l;
    cin>>n>>l;
    ll a[n+1];
    for (ll i=1; i<=n; i++){
        cin>>a[i];
    }
    ll i=1;
    ll sum=0;
    for (ll j=1; j<=n; j++){
        sum+=a[j];
        while (sum>l){
            sum-=a[i++];
        }
        if (sum==l){
            for (ll k=i; k<=j; k++){
                cout<<a[k]<<" ";
            }
            return 0;
        }
    }
    cout<<-1;
}