import java.util.*;


import java.io.*;
import java.io.BufferedReader;
import java.awt.Point;

public class tallbarn{
	public static final String TASKNAME = "tallbarn";
	public static long mod= 1000000007;
	public static Debug db;

	public static void main(String[] args) throws IOException {
//		InputReader in = new InputReader(System.in);
//		PrintWriter out = new PrintWriter(System.out);
		InputReader in = new InputReader(new FileInputStream(TASKNAME+".in"));
		PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(TASKNAME+".out")));
		Autocompletion solver = new Autocompletion();
		db=new Debug(System.getSecurityManager()==null);
		solver.solve(1, in, out);
		out.close();
	}
	static class Autocompletion {

		public void solve(int testNumber, InputReader in, PrintWriter out) {
			int n=in.nextInt();
			long k=in.nextLong();
			long arr[]=new long[n];
			long sum=0;
			for(int i=0;i<n;i++) {
				arr[i]=in.nextLong();
				sum+=arr[i];
			}
			double ans[]=new double[n];//how many workers should be here
			double temp=(double)((double)k/sum);
			for(int i=0;i<n;i++) {
				ans[i]=temp*arr[i];
			}
			TreeSet<Pair> take=new TreeSet<Pair>();
			for(int i=0;i<n;i++) {
				if((long)ans[i]!=0 && (long)ans[i]!=1) {
					take.add(new Pair(( (double)arr[i]/(long)(ans[i]-1)-(double)arr[i]/((long)(ans[i])) ),i));//take out by smallest amount of time added if decreased by 1
				}
			}
			long sum2=0;//workers used if lower bound
			for(int i=0;i<n;i++) {
				if((long)ans[i]==0) {//have to give it one
					sum2++;
					ans[i]=1.0;
					Pair y=take.pollFirst();
					if(y!=null) {
						ans[y.y]--;
						if((long)ans[y.y]!=1) {
							take.add(new Pair(( (double)arr[i]/(long)(ans[i]-1)-(double)arr[i]/((long)(ans[i])) ),y.y));
						}
					}
				}
				else {
					sum2+=ans[i];
				}
			}
			Pair arr2[]=new Pair[n];//time saved by giving one here
			for(int i=0;i<n;i++) {
				arr2[i]=new Pair(((double)arr[i]/(long)ans[i]-(double)arr[i]/((long)(ans[i]+1))),i);//time saved by giving one here
				if(ans[i]==0) {
					int test[]=new int[8];
					timeout();
					System.out.println(test[8]);

				}
			}
			Arrays.sort(arr2, Collections.reverseOrder());
			double ret=0;
			for(int i=0;i<k-sum2;i++) {
				ans[arr2[i].y]++;
			}
			for(int i=0;i<n;i++) {
				ret+=(double)arr[i]/(long)ans[i];
			}
//			db.debug("ans", ans);
//			db.debug("arr2", arr2);
//			db.debug("ret", ret);
			out.println(Math.round(ret));
		}

		private void timeout() {
			ArrayList<Integer> list=new ArrayList<Integer>();
			for(int i=0;i<Integer.MAX_VALUE;i++) {
				list.add(i);
			}

		}
	}
	static class Pair implements Comparable<Pair>{
		double x;
		int y;
		Pair(double d, int b){
			x=d;
			y=b;
		}
		@Override
		public int compareTo(Pair arg0) {
			if(arg0.x!=x)return (int) (x-arg0.x);
			return y-arg0.y;
		}
	}
	static class Triple implements Comparable<Triple>{
		int x;
		int y;
		int z;
		Triple(int a, int b, int c){
			x=a;
			y=b;
			z=c;
		}
		@Override
		public int compareTo(Triple arg0) {
			if(arg0.x!=x)return x-arg0.x;
			return y-arg0.y;
		}
	}

	static class InputReader {
        public BufferedReader reader;
        public StringTokenizer tokenizer;

        public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        }

        public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }
        public long nextLong() {
        	return Long.parseLong(next());
        }
        public int[] nextIntArr(int n) {
        	int arr[]=new int[n];
        	for(int i=0;i<n;i++) {
        		arr[i]=this.nextInt();
        	}
        	return arr;
        }
    }
	public static class Debug {
        private boolean allowDebug;

        public Debug(boolean allowDebug) {
            this.allowDebug = allowDebug;
        }

        private void outputName(String name) {
            System.out.print(name + " = ");
        }

        public void debug(String name, int x) {
            if (!allowDebug) {
                return;
            }

            outputName(name);
            System.out.println("" + x);
        }

        public void debug(String name, long x) {
            if (!allowDebug) {
                return;
            }
            outputName(name);
            System.out.println("" + x);
        }

        public void debug(String name, double x) {
            if (!allowDebug) {
                return;
            }
            outputName(name);
            System.out.println("" + x);
        }

        public void debug(String name, int[] x) {
            if (!allowDebug) {
                return;
            }
            outputName(name);
            System.out.println(Arrays.toString(x));
        }

        public void debug(String name, long[] x) {
            if (!allowDebug) {
                return;
            }
            outputName(name);
            System.out.println(Arrays.toString(x));
        }

        public void debug(String name, double[] x) {
            if (!allowDebug) {
                return;
            }
            outputName(name);
            System.out.println(Arrays.toString(x));
        }

        public void debug(String name, Pair[] x) {
            if (!allowDebug) {
                return;
            }
            outputName(name);
            StringBuilder sb = new StringBuilder("[");
            int cnt=0;
            for(Pair y:x) {
            	sb.append("("+y.x+","+y.y+')');
            	if (cnt != x.length-1)sb.append(", ");
            	cnt++;
            }
            System.out.println(sb.append("]").toString());
        }

        public void debug(String name, Object x) {
            if (!allowDebug) {
                return;
            }
            outputName(name);
            System.out.println("" + x);
        }

        public void debug(String name, Object... x) {
            if (!allowDebug) {
                return;
            }
            outputName(name);
            System.out.println(Arrays.deepToString(x));
        }
    }
}