Students Vasya and Petya are studying at the BSU (Byteland State University). At one of the breaks they decided to order a pizza. In this problem pizza is a circle of some radius. The pizza was delivered already cut into n pieces. The i-th piece is a sector of angle equal to ai. Vasya and Petya want to divide all pieces of pizza into two continuous sectors in such way that the difference between angles of these sectors is minimal. Sector angle is sum of angles of all pieces in it. Pay attention, that one of sectors can be empty.

Input

The first line contains one integer n (1 ≤ n ≤ 360) — the number of pieces into which the delivered pizza was cut.

The second line contains n integers ai (1 ≤ ai ≤ 360) — the angles of the sectors into which the pizza was cut. The sum of all ai is 360.

Output

Print one integer — the minimal difference between angles of sectors that will go to Vasya and Petya.

Examples

Input

4
90 90 90 90


Output

0


Input

3
100 100 160


Output

40


Input

1
360


Output

360


Input

4
170 30 150 10


Output

0

Note

In first sample Vasya can take 1 and 2 pieces, Petya can take 3 and 4 pieces. Then the answer is |(90 + 90) - (90 + 90)| = 0.

In third sample there is only one piece of pizza that can be taken by only one from Vasya and Petya. So the answer is |360 - 0| = 360.

In fourth sample Vasya can take 1 and 4 pieces, then Petya will take 2 and 3 pieces. So the answer is |(170 + 10) - (30 + 150)| = 0.

Picture explaning fourth sample:

<image>

Both red and green sectors consist of two adjacent pieces of pizza. So Vasya can take green sector, then Petya will take red sector.
	import java.awt.List;
    		import java.io.*;
    		import java.util.*;
     
    		
    		
    		
    		
    		/*
    		 * 
    		 * daiict
    		 *
    		 * 
    		 * 
    		 */
    		
    		
    		public class prac {
    			FastScanner in;
    			PrintWriter out;
    		
    			static ArrayList[] adj;
    			
    			static int n;
    			static int m;
    			
    			static int[] dp1;
    			static int[] dp2;
    			static int color[];
    			static int visited[];
    			static long[] arr;
    			static long[] brr;
    			static long ans;
    			static int array[];
    			static int pref[];
    			static int tree[];
    			static int maxval = 32;
    		
    			static int sum = 0;
    		//for dfs do not delete
    			static int dir[][] ={{1,0},{0,1},{0,-1},{-1,0},{1,1},{1,-1},{-1,1},{-1,-1}};
    			
    		
    			static long[] seg;
    			static long count = 1;
    			static long mod = (long)1e9 + 7;
    	
    			static int parent[];
    			static int size[];
    			
    			static class Pair implements Comparable<Pair>
    		    {
    				int x;int y;
    				
    		        Pair(int l, int m) {
    		          
    		        	this.x = l;
    		            this.y = m;
    		          
    		        }
    		        
    		        public int compareTo(Pair p) {
    		            if (this.x == p.x) {
    		                return (int)(this.y-p.y);
    		            }
    		            return (int)(this.x - p.x);
    		        }
    		        
    		        public String toString(){
    		        	return x + " " + y;
    		        }
    		        
    		        public boolean equals(Object o){
    		        	if(o instanceof Pair){
    		        		Pair a = (Pair)o;
    		        		
    		        		return this.x == a.x;
    		        	}
    		        	
    		        	return false;
    		        }
    		        
    		        public int hashCode(){
    		        	return new Long(x).hashCode()*31 + new Long(y).hashCode();
    		        }
    		    
    		    }
    		    
    			
    			public static int gcd(int a, int b) {
    				if (b == 0) return a;
    				return gcd(b, a%b);
    			}
    	
    			void build(int n) {  // build the tree
    				  for (int i = n - 1; i > 0; --i) seg[i] = Math.max(seg[i<<1],seg[i<<1|1]);
    				}
     
    			public static void modify(int p, int i,long val,int n) {  // set value at position p
    					if(i == 1){
    						long temp = val;
    						val = seg[p+n] - arr[p] + val;
    						arr[p] = temp;
    					}else{
    						val = Math.min(val, p) + arr[p];
    						brr[p] = val;
    					}
    					
    				  for (seg[p += n] = val; p > 1; p >>= 1) seg[p>>1] = Math.max(seg[p],seg[p^1]);
    				}
     
    				long query(int l, int r,int n) {  // max on interval [l, r)
    				  long res = Integer.MIN_VALUE;
    				  for (l += n, r += n; l < r; l >>= 1, r >>= 1) {
    				    if ((l&1) == 1) res = (int)Math.max(res,seg[l++]);
    				    if ((r&1) == 1) res = (int)Math.max(res,seg[--r]);
    				  }
    				  return res;
    				}
    				
    			public static void update(int x,int val){
    				while(x<=maxval){
    					tree[x] += val;
    					x = (x&-x);
    				}
    			}
    			
    			public static int read(int idx){
    				int sum = 0;
    				
    				while(idx>= 0){
    					sum += tree[idx];
    					idx -= (idx&(-idx));
    				}
    				
    				return sum;
    			}
    			
    			public static int find(int i){
    				if(parent[i] != i){
    					return find(parent[i]);
    				}
    				
    				return i;
    			}
    			
    			public static void union(int a,int b){
    				int x = find(a);
    				int y = find(b);
    				
    				if(x!=y){
    					if(size[x] > size[y]){
    						size[x] += size[y];
    						parent[y] = x;
    					}else{
    						size[y] += size[x];
    						parent[x] = y;
    					}
    				}
    			}
    			
    		    void solve() throws NumberFormatException, IOException {
    		 
    		    	//Scanner in = new Scanner(System.in);
    		    	StringBuilder sb = new StringBuilder();
    		    	
    		    	int n = in.nextInt();
    		    	
    		    	int min = 360;
    		    	
    		    	int arr[] = new int[n];
    		    	
    		    	for(int i = 0;i<n;i++){
    		    		arr[i] = in.nextInt();
    		    	}
    		    	
    		    	for(int i = 0;i<n;i++){
    		    		int sum = 0;
    		    		
    		    		for(int j = 0;j<n;j++){
    		    			int c = (i+j)%n;
    		    				
    		    			sum += arr[c];
    		    			
    		    			min = Math.min(min,Math.abs((360-sum)-sum));
    		    		
    		    			
    		    		}
    		    	}
    		    	
    		    	out.println(min);
    		    }
    		    
    		    public static void dfs(int i,long gold[]){
    		    	if(visited[i] == 1){
    		    		return;
    		    	}
    		    	
    		    	visited[i] = 1;
    		    	ans = Math.min(ans, gold[i]);
    		    	for(int j = 0;j<adj[i].size();j++){
    		    		dfs((int)adj[i].get(j),gold);
    		    	}
    		    	
    		    }
    		    
    		    
    		    /**
    		     * 
    		     * @param a
    		     * @param left
    		     * @param right
    		     * @param value
    		     * @return the smallest index i which a[i] >= value in range [left, right) if exists, otherwise return -1
    		     */
    		    int ff(long[] a, int left, int right, int value) {
    		        int low = left;
    		        int high = right;
    		        while (low != high) {
    		            int mid = (low + high) / 2;
    		            if (a[mid] < value) {
    		                low = mid + 1;
    		            } else {
    		                high = mid;
    		            }
    		        }
    		        if (low == right) {
    		            return low;
    		        }
    		        return low;
    		    } 
    		   
    		    /**
    		     * 
    		     * @param a
    		     * @param left
    		     * @param right
    		     * @param value
    		     * @return greatest index i which a[i] <= value in range [left, right) if exists, otherwise return a number out of [left, right)
    		     */
    		    int ffff(long[] a, int left, int right, int value) {
    		        while (left != right) {
    		            int mid = (left + right) >> 1;
    		            if (a[mid] <= value) {
    		                left = mid + 1;
    		            } else {
    		                right = mid;
    		            }
    		        }
    		        if (left < 0) {
    		            left *= -1;
    		        }
    		        return --left;
    		    }
	    
    		   
    		  
    		
    		    public static String reverse(String s){
    		    	
    		    	String ans = "";
    		    	
    		    	for(int i = s.length()-1;i>=0;i--){
    		    		ans += s.charAt(i);
    		    	}
    		    	
    		    	return ans;
    		    	
    		    }
    			
    			
    		    
    		 
    		    public static long sum(long x){
    		    	return x<10?x:x%10 + sum(x/10);
    		    }
    			
    			public static long gcd(long x, long y) {
    				if (x == 0)
    					return y;
    				else
    					return gcd( y % x,x);
    			}
    			static long inv(long x , long mod)
    			{
    				long r,y;
    				for(r=1,y=mod-2;y!=0;x=x*x%mod,y>>=1)
    				{
    					if((y&1)==1)
    						r=r*x%mod;
    				
    				}
    				return r;
    			}
    			
    			public static long pow(long x,long y,long n){
    				if(y==0)
    					return 1%n;
    				if(y%2==0){
    					long z=pow(x,y/2,n);
    					return (z*z)%n;
    				}
    				return ((x%n)*pow(x,y-1,n))%n;
    			}
    			
    			
    			
    			
    			public static boolean isPrime(int n) {
    				// Corner cases
    				if (n <= 1)
    					return false;
    				if (n <= 3)
    					return true;
    		 
    				// This is checked so that we can skip 
    				// middle five numbers in below loop
    				if (n % 2 == 0 || n % 3 == 0)
    					return false;
    		 
    				for (int i = 5; i * i <= n; i = i + 6)
    					if (n % i == 0 || n % (i + 2) == 0)
    						return false;
    		 
    				return true;
    			}
    			
    		
    			void run() throws NumberFormatException, IOException {
    				in = new FastScanner();
    				out = new PrintWriter(System.out);
    		
    				solve();
    		
    				out.close();
    			}
    		
    			class FastScanner {
    				BufferedReader br;
    				StringTokenizer st;
    		
    				public FastScanner() {
    					br = new BufferedReader(new InputStreamReader(System.in));
    				}
    		
    				String next() {
    					while (st == null || !st.hasMoreTokens()) {
    						try {
    							st = new StringTokenizer(in.br.readLine());
    						} catch (IOException e) {
    							// TODO Auto-generated catch block
    							e.printStackTrace();
    						}
    					}
    					return st.nextToken();
    				}
    		
    				int nextInt() {
    					return Integer.parseInt(next());
    				}
    		
    				long nextLong() {
    					return Long.parseLong(next());
    				}
    		
    				double nextDouble() {
    					return Double.parseDouble(next());
    				}
    			}
    			
    			
    			
    			
    		 
    		
    			public static void main(String[] args) throws NumberFormatException, IOException {
    				new prac().run();
    			}
    		}
    		
