#include using namespace std; using ll=long long; using ull=unsigned long long; #define rep(i,n) for(int i=0; i<(n); i++) int N,M,X,Y; vector A; int C; int main(){ scanf("%d%d%d%d",&N,&M,&X,&Y); C = M; ll ans=0; rep(i,N){ int x; scanf("%d",&x); if(x<=Y) ; else if(x()); if(A.size()