Problem: Everybody in Russia uses Gregorian calendar. In this calendar there are 31 days in January, 28 or 29 days in February (depending on whether the year is leap or not), 31 days in March, 30 days in April, 31 days in May, 30 in June, 31 in July, 31 in August, 30 in September, 31 in October, 30 in November, 31 in December.

A year is leap in one of two cases: either its number is divisible by 4, but not divisible by 100, or is divisible by 400. For example, the following years are leap: 2000, 2004, but years 1900 and 2018 are not leap.

In this problem you are given n (1 ≤ n ≤ 24) integers a1, a2, ..., an, and you have to check if these integers could be durations in days of n consecutive months, according to Gregorian calendar. Note that these months could belong to several consecutive years. In other words, check if there is a month in some year, such that its duration is a1 days, duration of the next month is a2 days, and so on.

Input

The first line contains single integer n (1 ≤ n ≤ 24) — the number of integers.

The second line contains n integers a1, a2, ..., an (28 ≤ ai ≤ 31) — the numbers you are to check.

Output

If there are several consecutive months that fit the sequence, print "YES" (without quotes). Otherwise, print "NO" (without quotes).

You can print each letter in arbitrary case (small or large).

Examples

Input

4
31 31 30 31


Output

Yes



Input

2
30 30


Output

No



Input

5
29 31 30 31 30


Output

Yes



Input

3
31 28 30


Output

No



Input

3
31 31 28


Output

Yes

Note

In the first example the integers can denote months July, August, September and October.

In the second example the answer is no, because there are no two consecutive months each having 30 days.

In the third example the months are: February (leap year) — March — April – May — June.

In the fourth example the number of days in the second month is 28, so this is February. March follows February and has 31 days, but not 30, so the answer is NO.

In the fifth example the months are: December — January — February (non-leap year).

Solution (in JAVA):

Solution:
		import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.InputMismatchException;


				
					 
					public class Solution1 implements Runnable
					{
						static final int MAX = 1000000000;
						static class InputReader
						{
							private InputStream stream;
							private byte[] buf = new byte[1024];
							private int curChar;
							private int numChars;
							private SpaceCharFilter filter;
							private BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
					
							public InputReader(InputStream stream)
							{
								this.stream = stream;
							}
							
							public int read()
							{
								if (numChars==-1) 
									throw new InputMismatchException();
								
								if (curChar >= numChars)
								{
									curChar = 0;
									try 
									{
										numChars = stream.read(buf);
									}
									catch (IOException e)
									{
										throw new InputMismatchException();
									}
									
									if(numChars <= 0)				
										return -1;
								}
								return buf[curChar++];
							}
						 
							public String nextLine()
							{
								String str = "";
					            try
					            {
					                str = br.readLine();
					            }
					            catch (IOException e)
					            {
					                e.printStackTrace();
					            }
					            return str;
							}
							public int nextInt()
							{
								int c = read();
								
								while(isSpaceChar(c)) 
									c = read();
								
								int sgn = 1;
								
								if (c == '-') 
								{
									sgn = -1;
									c = read();
								}
								
								int res = 0;
								do 
								{
									if(c<'0'||c>'9') 
										throw new InputMismatchException();
									res *= 10;
									res += c - '0';
									c = read();
								}
								while (!isSpaceChar(c)); 
								
								return res * sgn;
							}
							
							public long nextLong() 
							{
								int c = read();
								while (isSpaceChar(c))
									c = read();
								int sgn = 1;
								if (c == '-') 
								{
									sgn = -1;
									c = read();
								}
								long res = 0;
								
								do 
								{
									if (c < '0' || c > '9')
										throw new InputMismatchException();
									res *= 10;
									res += c - '0';
									c = read();
								}
								while (!isSpaceChar(c));
									return res * sgn;
							}
							
							public double nextDouble() 
							{
								int c = read();
								while (isSpaceChar(c))
									c = read();
								int sgn = 1;
								if (c == '-') 
								{
									sgn = -1;
									c = read();
								}
								double res = 0;
								while (!isSpaceChar(c) && c != '.') 
								{
									if (c == 'e' || c == 'E')
										return res * Math.pow(10, nextInt());
									if (c < '0' || c > '9')
										throw new InputMismatchException();
									res *= 10;
									res += c - '0';
									c = read();
								}
								if (c == '.') 
								{
									c = read();
									double m = 1;
									while (!isSpaceChar(c)) 
									{
										if (c == 'e' || c == 'E')
											return res * Math.pow(10, nextInt());
										if (c < '0' || c > '9')
											throw new InputMismatchException();
										m /= 10;
										res += (c - '0') * m;
										c = read();
									}
								}
								return res * sgn;
							}
							
							public String readString() 
							{
								int c = read();
								while (isSpaceChar(c))
									c = read();
								StringBuilder res = new StringBuilder();
								do 
								{
									res.appendCodePoint(c);
									c = read();
								} 
								while (!isSpaceChar(c));
								
								return res.toString();
							}
						 
							public boolean isSpaceChar(int c) 
							{
								if (filter != null)
									return filter.isSpaceChar(c);
								return c == ' ' || c == '\n' || c == '\r' || c == '\t' || c == -1;
							}
						 
							public String next() 
							{
								return readString();
							}
							
							public interface SpaceCharFilter 
							{
								public boolean isSpaceChar(int ch);
							}
						}
					 	
						public static void main(String args[]) throws Exception
						{
							new Thread(null, new Solution1(),"Solution1",1<<26).start();
						}
						long power(long x, long y)
						{
						    long res = 1;      // Initialize result
						 
						    x = x % MAX;  // Update x if it is more than or 
						                // equal to p
						 
						    while (y > 0)
						    {
						        // If y is odd, multiply x with result
						        if (y % 2 == 1)
						            res = (res*x) % MAX;
						 
						        // y must be even now
						        y = y>>1; // y = y/2
						        x = (x*x) % MAX;  
						    }
						    return res;
						}
						static long[] fact = new long[60];
						static void fact(){
							for(int i = 0;i < 60;i++){
								if(i == 0){
									fact[0] = 0;
									continue;
								}
								long ans = 1;
								for(int j = i;j >= 1;j--){
									ans = (ans * j)%MAX;
								}
								fact[i] = ans;
							}
						}
						public void run()
						{
							InputReader sc= new InputReader(System.in);
							PrintWriter w= new PrintWriter(System.out);
							int n = sc.nextInt();
							int[] arr = new int[n];
							for(int i = 0;i < arr.length;i++){
								arr[i] = sc.nextInt();
							}
							ArrayList<Integer> ar=  new ArrayList();
							for(int i = 397;i < 803;i++){
								if((i%400==0) || (i%4==0 && i%100!=0))
						        {
						            for(int j=1;j<=12;j++)
						            {
						                
						                if(j==2)
						                {
						                    ar.add(29);
						                }
						                else if(j==4 || j==6 || j==9 || j==11)
						                    ar.add(30);
						                else
						                {
						                    ar.add(31);
						                }
						            }
						        }else{
						        	  for(int j=1;j<=12;j++)
						              {
						                  
						                  if(j==2)
						                  {
						                      ar.add(28);
						                  }
						                  else if(j==4 || j==6 || j==9 || j==11)
						                      ar.add(30);
						                  else
						                  {
						                      ar.add(31);
						                  }
						              }
						        }
							}
							for(int i=0;i<ar.size();i++)
						    {
						        int x=i;
						        boolean  flag= false;;
						        for(int j=0;j<n;j++)
						        {
						            if(x < ar.size() && arr[j] == ar.get(x))
						            {
						                
						            }
						            else
						            {
						                flag=true;
						            }
						            x++;
						        }
						        if(!flag)
						        {
						            w.println("YES");
						            w.close();
						            System.exit(0);
						        }
						    }
							w.println("NO");
							w.close();
						}
						static class Pair implements Comparable<Pair>{
							int a;
							int b;
							Pair(int a,int b)	{
								this.a = a;
								this.b = b;
							}
							public boolean equals(Object o)
							{
								Pair p = (Pair)o;
								return p.a==a && p.b==b;
							}
							public int compareTo(Pair p){
								if(p.b == this.b){
									return Integer.compare(this.a,p.a);
								}else{
									return Integer.compare(p.b,this.b);
								}
							}
							public int hashCode()
							{
								return new Long(a).hashCode()*31 + new Long(a).hashCode();
							}
						}
					}