Edit distance

import sys
def zerolistmaker(n):
    listofzeros = [0] * n
    return listofzeros
input_1 = sys.stdin.readline()
input_2 = sys.stdin.readline()
input_1 = list(input_1)
input_2 = list(input_2)
del(input_1[-1])
del(input_2[-1])
status_ok = True
if input_1:
	if(len(input_1)!=len(input_2)):
		if(len(input_1)>len(input_2)):
			diff = len(input_1)-len(input_2)
			input1_list = zerolistmaker(len(input_1))
			input2_list = zerolistmaker(len(input_1))
			flag= len(input2_list)-diff
			input1_list=input_1
			input2_list[0:flag]=input_2[:]
		else:
			diff = len(input_2)-len(input_1)
			input1_list = zerolistmaker(len(input_2))
			input2_list = zerolistmaker(len(input_2))
			flag= len(input1_list)-diff
			input2_list=input_2
			input1_list[0:flag]=input_1[:]
	if(len(input_1)==len(input_2)):
		input1_list = zerolistmaker(len(input_1))
		input2_list = zerolistmaker(len(input_1))
		input1_list = input_1
		input2_list = input_2
	i=0
	counter = 0
	while (i<len(input1_list)):
		if(input1_list[i]!=input2_list[i]):
			counter = counter+1
		i=i+1
	print(counter)
else:
	print("wrong inputs")
	
			
			

Test 1

Verdict: UNKNOWN

Test 2

Verdict: UNKNOWN

Test 3

Verdict: UNKNOWN

Test 4

Verdict: UNKNOWN

Test 5

Verdict: UNKNOWN

Test 6

Verdict: UNKNOWN

Test 7

Verdict: UNKNOWN

Test 8

Verdict: UNKNOWN

Test 9

Verdict: UNKNOWN

Test 10

Verdict: UNKNOWN

Test 11

Verdict: UNKNOWN

Test 12

Verdict: UNKNOWN

Test 13

Verdict: UNKNOWN

Test 14

Verdict: UNKNOWN

Test 15

Verdict: UNKNOWN

Test 16

Verdict: UNKNOWN

Test 17

Verdict: UNKNOWN

Test 18

Verdict: UNKNOWN

Test 19

Verdict: UNKNOWN