In the snake exhibition, there are n rooms (numbered 0 to n - 1) arranged in a circle, with a snake in each room. The rooms are connected by n conveyor belts, and the i-th conveyor belt connects the rooms i and (i+1) mod n. In the other words, rooms 0 and 1, 1 and 2, …, n-2 and n-1, n-1 and 0 are connected with conveyor belts.

The i-th conveyor belt is in one of three states:

  * If it is clockwise, snakes can only go from room i to (i+1) mod n. 
  * If it is anticlockwise, snakes can only go from room (i+1) mod n to i. 
  * If it is off, snakes can travel in either direction. 

<image>

Above is an example with 4 rooms, where belts 0 and 3 are off, 1 is clockwise, and 2 is anticlockwise.

Each snake wants to leave its room and come back to it later. A room is returnable if the snake there can leave the room, and later come back to it using the conveyor belts. How many such returnable rooms are there?

Input

Each test contains multiple test cases. The first line contains a single integer t (1 ≤ t ≤ 1000): the number of test cases. The description of the test cases follows. 

The first line of each test case description contains a single integer n (2 ≤ n ≤ 300 000): the number of rooms.

The next line of each test case description contains a string s of length n, consisting of only '<', '>' and '-'.

  * If s_{i} =  '>', the i-th conveyor belt goes clockwise. 
  * If s_{i} =  '<', the i-th conveyor belt goes anticlockwise. 
  * If s_{i} =  '-', the i-th conveyor belt is off. 



It is guaranteed that the sum of n among all test cases does not exceed 300 000.

Output

For each test case, output the number of returnable rooms.

Example

Input


4
4
-&gt;&lt;-
5
&gt;&gt;&gt;&gt;&gt;
3
&lt;--
2
&lt;&gt;


Output


3
5
3
0

Note

In the first test case, all rooms are returnable except room 2. The snake in the room 2 is trapped and cannot exit. This test case corresponds to the picture from the problem statement.

In the second test case, all rooms are returnable by traveling on the series of clockwise belts.
											import java.math.BigInteger;
											import java.sql.Array;
										    import java.util.ArrayList;
											import java.util.Arrays;
											import java.util.Collection;
											import java.util.Collections;
											import java.util.Comparator;
											import java.util.HashMap;
											import java.util.InputMismatchException;
											import java.util.Iterator;
											import java.util.LinkedHashSet;
											import java.util.LinkedList;
											import java.util.List;
											import java.util.Map;
											import java.util.Map.Entry;	
											import java.util.PriorityQueue;
											import java.util.Queue;
											import java.util.Scanner;
											import java.util.Set;
											import java.util.Stack;
											import java.io.BufferedReader;
											import java.io.IOException;
											import java.io.InputStream;
											import java.io.InputStreamReader;
											import java.util.Scanner;
											import java.util.StringTokenizer;
											import java.util.TreeMap;
											import java.util.TreeSet;
											
											
											
											public class Main {
												
											static long l[];	
											static int k;	
													
												static InputReader rd=new InputReader(System.in);
											
												public static void main(String[] args) {
													Scanner sc=new Scanner(System.in);
													
													int t=sc.nextInt();
													outer:while(t-->0) {
													
													int n=sc.nextInt();
													
													StringBuilder sb=new StringBuilder(sc.next());
													int f=0;int b=0;
												int off=0;
													for(int i=0;i<n;i++) {
													
														
														
														if(sb.charAt(i)=='<')f++;
														if(sb.charAt(i)=='>')b++;
														
														if((i!=0&&sb.charAt(i-1)=='-')||sb.charAt(i)=='-')off++;
														
														else if ((i==0&&sb.charAt(n-1)=='-'))off++;
													}
													
													if(f==0||b==0)System.out.println(n);
													else if(off!=0) System.out.println(off);
													
													
													else System.out.println(0);
													}
													}
															
															
												public static int removeDuplicateElementsFromArray(int array[], int arrayLength){
											        //Checking the length of the passed array
											        if (arrayLength==0 || arrayLength==1){
											            return arrayLength;
											        }
											        //Creating a temporary array of the passed array lenght
											        int[] temp = new int[arrayLength];
											        int j = 0;
											        //For Loop itteration
											        for (int i=0; i<arrayLength-1; i++){
											            if (array[i] != array[i+1]){
											                temp[j++] = array[i];
											            }
											         }
											        //Setting the last element of array to the temp
											        temp[j++] = array[arrayLength-1];
											        // Changing original array
											        for (int i=0; i<j; i++){
											            array[i] = temp[i];
											        }
											        return j;
											    }	
														
														
													static class Naruto{
														
														int a;int i;
														
														public Naruto(int a ,int i) {
															// TODO Auto-generated constructor stub
														this.a=a;
														this.i=i;
														}
														
													}
													
													
													
													
											
													
												static long power1(long x, long y, long p) 
											    { 
											        // Initialize result 
											        long res = 1;      
											         
											        // Update x if it is more   
											        // than or equal to p 
											        x = x % p;  
											  
											       if (x == 0) return 0; // In case x is divisible by p;    
											  
											        while (y > 0) 
											        { 
											            // If y is odd, multiply x 
											            // with result 
											            if((y & 1)==1) 
											                res = (res * x) % p; 
											      
											            // y must be even now 
											            // y = y / 2 
											            y = y >> 1;  
											            x = (x * x) % p;  
											        } 
											        return res; 
											    } 	
									static void dfs(ArrayList<ArrayList<graph>> g,int v,boolean visited[]) {
										
										visited[v]=true;
										l[k]+=1;
										for(graph j:g.get(v)) {
											if(j.c==0) {
												//System.out.println(v);
												if(!visited[j.v])
												dfs(g,j.v,visited);  
											}
											
										}
										
										
									}
												
												
									static class graph{
										int v;int c;
										public graph(int v,int c) {
											// TODO Auto-generated constructor stub
											this.v=v;
											this.c=c;
										
										}
										
									}
												
												
													
												
										static		long fact(long n) {
													
													if(n<=1)return 1;
													else return n*fact(n-1);
												}
												
								 static long maxCrossingSum(long arr[], int l, 
							                                int m, int h) 
							    { 
							        // Include elements on left of mid. 
							       long sum = 0; 
							        long left_sum = Integer.MIN_VALUE; 
							        for (int i = m; i >= l; i--) 
							        { 
							            sum = sum + arr[i]; 
							            if (sum > left_sum) 
							            left_sum = sum; 
							        } 
							  
							        // Include elements on right of mid 
							        sum = 0; 
							        long right_sum = Integer.MIN_VALUE; 
							        for (int i = m + 1; i <= h; i++) 
							        { 
							            sum = sum + arr[i]; 
							            if (sum > right_sum) 
							            right_sum = sum; 
							        } 
							  
							        // Return sum of elements on left 
							        // and right of mid 
							       // returning only left_sum + right_sum will fail for [-2, 1] 
							        return Math.max(left_sum + right_sum, Math.max(left_sum, right_sum)); 
							    } 
							  
							    // Returns sum of maxium sum subarray  
							    // in aa[l..h] 
							    static long maxSubArraySum(long arr[], int l,  
							                                      int h) 
							    { 
							    // Base Case: Only one element 
							    if (l == h) 
							        return arr[l]; 
							  
							    // Find middle point 
							    int m = (l + h)/2; 
							  
							    /* Return maximum of following three  
							    possible cases: 
							    a) Maximum subarray sum in left half 
							    b) Maximum subarray sum in right half 
							    c) Maximum subarray sum such that the  
							    subarray crosses the midpoint */
							    return Math.max(Math.max(maxSubArraySum(arr, l, m), 
							                    maxSubArraySum(arr, m+1, h)), 
							                    maxCrossingSum(arr, l, m, h)); 
							    } 
												
												static long abs(long a) {
													return Math.abs(a);
												}
												
												static class seg{
													
													int x;int y;int l;
													public seg(int x,int y,int l) {
														this.x=x;
														this.y=y;
														this.l=l;
														// TODO Auto-generated constructor stub
													}
													
													
												}
											static	boolean isPresent(int j,int p) {
													
													int i=(j/50)%475;
													
													for(int k=0;k<25;k++) {
													    i = (i * 96 + 42)% 475;
													    if(26+i==p)return true;
														}
													return false;
													
												}
																				
												static class Helper{
													int val;int index;
													public Helper(int  val,int index) {
														
														this.val=val;
														this.index=index;
														// TODO Auto-generated constructor stub
													}
												}
											
										
												
								
											    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; 
											    } 
										
												      
												    /* Iterative Function to calculate 
												       (x^y)%p in O(log y) */
												    static long power(long x, long y, long p) 
												    { 
												        // Initialize result 
												        long res = 1;      
												         
												        // Update x if it is more   
												        // than or equal to p 
												        x = x % p;  
												  
												       if (x == 0) return 0; // In case x is divisible by p;    
												  
												        while (y > 0) 
												        { 
												            // If y is odd, multiply x 
												            // with result 
												            if((y & 1)==1) 
												                res = (res * x) % p; 
												      
												            // y must be even now 
												            // y = y / 2 
												            y = y >> 1;  
												            x = (x * x) % p;  
												        } 
												        return res; 
												    } 
									
												
												
												
												  static class InputReader {
												        private InputStream stream;
												        private byte[] buf = new byte[1024];
												        private int curChar;
												        private int numChars;
												        private SpaceCharFilter filter;
											
												        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 int readInt() {
												            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 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);
												    }	
												
												
																					
																					
																					
																		
											}
											    