function Main(inputs) {
  var lines = inputs.split('\n')

  var N = +(lines[0].split(' ')[0])
  var K = +(lines[0].split(' ')[1])

  var HitPoints = lines[1].split(' ').map(v=>+v).sort((a,b)=> a>b ? 1 : -1)

  var size = Math.max(N - K,0)
  console.log(HitPoints.slice(0,size).reduce((s,v)=>s+v,0))
}
Main(require("fs").readFileSync("/dev/stdin", "utf8"));
