import Foundation

func readInts() -> [Int]{
    readLine()!.split(separator: " ").map { Int($0)! }
}

func main(){
    let nm = readInts()
    let (_,m) = (nm[0],nm[1])
    let votes = readInts().sorted { $0 > $1 }
    let total = votes.reduce(0) { $0 + $1 } // 総得票数
    
    for i in 0...m {
        if votes[i] * 4 * 2 < total {
            print("No")
            return
        }
    }
    print("Yes")
}

main()
