#include using namespace std; #define rep(i,n) for(ll i=0;i=0;i--) #define perl(i,r,l) for(ll i=r-1;i>=l;i--) #define fi first #define se second #define pb push_back #define ins insert #define pqueue(x) priority_queue,greater> #define all(x) (x).begin(),(x).end() #define CST(x) cout<; using vvl=vector>; using pl=pair; using vpl=vector; using vvpl=vector; const ll MOD=1000000007; const ll MOD9=998244353; const int inf=1e9+10; const ll INF=4e18; const ll dy[8]={-1,0,1,0,1,1,-1,-1}; const ll dx[8]={0,-1,0,1,1,-1,1,-1}; template inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; } template inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; } int main(){ ll n,x,y;cin >> n >> x >> y; vector v(n);rep(i,n)cin >> v[i]; vvl dp(n+1,vl(3));dp[0][2]=-INF; rep(i,n){ chmax(dp[i+1][0],dp[i][0]+v[i]); chmax(dp[i+1][1],dp[i][1]+x); chmax(dp[i+1][1],dp[i][0]+x); chmax(dp[i+1][2],dp[i][1]+x); chmax(dp[i+1][2],dp[i][2]+v[i]); chmax(dp[i+1][2],dp[i+1][1]); } vvl ep(n+1,vl(3));ep[n][2]=-INF; per(i,n){ chmax(ep[i][0],ep[i+1][0]+v[i]); chmax(ep[i][1],ep[i+1][1]+y); chmax(ep[i][1],ep[i+1][0]+y); chmax(ep[i][2],ep[i+1][1]+y); chmax(ep[i][2],ep[i+1][2]+v[i]); chmax(ep[i][2],ep[i][1]); } rep(i,n+1){ //rep(j,3)cout << ep[i][j] <<" ";cout <