>>> imya = ["кирилл", "игорь", "света"]
>>> let = [11, 5, 89]
>>> list(map(lambda x,y: "%i %s"%(x,y), let, imya))
['11 кирилл', '5 игорь', '89 света']

  
>>> def f(lst1, lst2):
...     return [str(j) + ' ' + i for i, j in
...             sorted(zip(lst1, lst2), key=lambda i: -i[1])]
... 
>>> lst1 = ['Кирилл', 'Игорь', 'Света']
>>> lst2 = [11, 5, 89]
>>> 
>>> f(lst1, lst2)
['89 Света', '11 Кирилл', '5 Игорь']
>>>