s1 = input("input the first strand: ")
s2 = input("input the second strand: ")

hamDist=0

for i in range(len(s1)):
    if s1[i] != s2[i]:
        hamDist +=1

print(hamDist)

67cd3acbee6e4cc0a13b57889987c4f5ea08597c
<mask token>

<mask token>
for i in range(len(s1)):
    if s1[i] != s2[i]:
        hamDist += 1
print(hamDist)

s1 = input('input the first strand: ')
s2 = input('input the second strand: ')
hamDist = 0
for i in range(len(s1)):
    if s1[i] != s2[i]:
        hamDist += 1
print(hamDist)

s1 = input("input the first strand: ")
s2 = input("input the second strand: ")

hamDist=0

for i in range(len(s1)):
    if s1[i] != s2[i]:
        hamDist +=1

print(hamDist)
