function main(input) {
  var N = input[0].split(" ")[0]-0;
  var K = input[0].split(" ")[1]-0;
  var list = input[1].split(" ").map(v=>v-0).sort((a,b)=>b-a);
  var ans = 0;
  for(var i=K;i<list.length;i++){
    ans += list[i];
  }
  console.log(ans);
}

main(require('fs').readFileSync('/dev/stdin', 'utf8').split("\n"))
