def denali (World):

    #Creating end points of the world
    World.append(0)
    World.insert(0,0)
    lengthofW=len(World)
    #List of Indexes/Locations of Continents
    continents=[]
    #Keeps count of the actual nonzero continents
    continentscount=0
    #The list of lists of continents
    continentstwo=[]
    #An average for each continent
    continentsavg=[]
    #List of Mountain Locations
    mountains=[]
    #List of Mountain Heights
    mountainheight=[]


#For loop that locates all locations at which a 0 precedes a series of numbers (continent beginnings)
    for x in range (0,lengthofW):
        if (World[x] == 0):
            continents.append(x)

#For and If that checks through continent indexes and makes a list of the #s between ever two indexes
    for x in range (0, len(continents)-1):
        if (x==(len(continents)-1)):
            break
        else:
            continentstwo.append(World[(continents[x]):(continents[x+1])])

#For and If that finds the average of all the continents now in a list called continentstwo
    for x in range (0, len(continentstwo)):
        avg=0
        count=0
        for y in range (0, len(continentstwo[x])):
            avg+= continentstwo[x][y]
            count+=1
        if (count>1):
            count=count-1
        avg=(avg/count)
        continentsavg.append(avg)


#Gets a count on the real number of continents (ignores any averages of 0)
    for x in range (0,len(continentsavg)):
        if (continentsavg[x] > 0):
            continentscount+=1

#Finds the mountains  by series of if checking if previous number and next number is less than current number
    for x in range (0,lengthofW):
            if (World[x-1] < World[x]):
                if (World[x] > World[x+1]):
                    mountains.append(x)
                    mountainheight.append(World[x])
                elif(World[x]==World[x+1]):
                     for y in range (x, lengthofW):
                             if (World[y]<World[x]):
                                 mountains.append(x+1)
                                 mountainheight.append(World[x])
                                 break

    print (continentscount, " continents")
    for x in range (0, len(mountains)):
        print ("mountain at", ((mountains[x])-1), "has an average elevation", mountainheight[x])


    count=0

    for x in range (0, len(continentsavg)):
       if (continentsavg[x]!=0):
          print ("continent", count , "has an average height of", continentsavg[x])
          count+=1