16. What does the following listing do? What is it? Listing 5: p5.py 1 def g(xlist): 2 h = xlist [0] 3 4 for i in range(1, len(xlist)): if hxlist[i]: 5 h = xlist[i] 6 return h 7 8 def v(xlist, y): 9 xtemp = [] 10 cnt = 0 11 12 while xlist: if xlist [0] != y: 13 xtemp += [xlist[0]] 14 else: 18 cnt + 1 xlist xlist [1:] return [xtemp, [y, cnt]] 19 def z(xlist): newlist [ ] 20 1562222222222 23 24 27 while xlist: m = g(xlist). n = v(xlist,m) xlist n[0] newlist [n[1][0]] *n[1] [1] return newlist 28 x [1,3,2,1,3,1] 29 30 x = z(x) 31 print(x)