Program to Enter 2 lists of integers. Check (a) Whether list are of same length (b) whether list sums to same value (c) whether any value occur in both

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#Enter 2 lists of integers. Check (a) Whether list are of same length (b)
whether list sums to same value (c) whether any value occur in both
lst1 = ['1', '2', '3', '4']
lst2 = ['3', '5', '2', '100', '12', '12']
sum1 = str(0)
sum2 = str(0)
if len(lst1) == len(lst2):
print("both list are of equal length")
else:
print("Two lists have unequal length")
for x in lst1:
sum1 = sum1 + x
for x in lst2:
sum2 = sum2 + x
if sum1 == sum2:
a = "equal"
else:
a = "not equal"
print(" sum of two list are ", a)
for x in lst1:
for y in lst2:
if x == y:
print(y," occurs in both lst")