import time
from multiprocessing import Process,Lock,Pool
from multiprocessing.sharedctypes import Value
final = []
def check_values(i,listofnumbers,listlength,total):
       for i1 in range(0,listlength + 1 - i):
                        numbers = []
                        countofnumbers=[]
                        currentlist = listofnumbers[i1:listlength-abs(i-listlength+i1)]
                        #print "I:",i,",TR nIZ ",tr_niz
                        for k in currentlist:
                                if k not in numbers:
                                        numbers.append(k)
                                        countofnumbers.append(currentlist.count(k) if currentlist.count(k)%2==0 else 0)
                        if 0 not in countofnumbers:
                                if sum(countofnumbers)%2==0:
                                        print "Hello"
                                        total.value+=1


try:
        listlength = int(raw_input("Enter the number of list elements >> "))
        listofnumbers   = raw_input("Enter the list elements , space separated").split(" ")
        start = time.clock()
        total = Value('i',1)
        for i in range(listlength,1,-2):
                p = Process(target=check_values,args=(i,listofnumbers,listlength,total))
                p.start()
                p.join()
        print final
        print total.value
        print "Time : ",time.clock()-start

except ValueError:
        print "Data not ok"