Multiple Choice

n = int(input())

correct = []
response = []
correctCount = 0
answerCount = 0
checkCount = 0

x = 0

while correctCount < n:
    correct.append(str(input()))
    correctCount += 1

while answerCount < n:
    response.append(str(input()))
    answerCount += 1

while checkCount < n:
    if response[checkCount] == correct[checkCount]:
        x += 1
    checkCount += 1

print(x)