python - Adding strings as integers from two lists -


i have 2 lists. example, 

list1 = ["7","3","19","5"]   list2 = ["3","15,"13","16"]

i want add these numbers 4 numbers. example result of 7+3 , 3+15.

my output overall should be

["10","18","32","21"]

i've tried using loop instead of getting 7+3 = 10 7+3 = 73. have tried using int() method error.

use zip, int, , str inside list comprehension.

[str(int(x) + int(y)) x, y in zip(list1, list2)]

result:

['10', '18', '32', '21']

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