import datetime
if __name__ == '__main__':
    ans = 0
    start = datetime.date(1901, 1, 1)
    end = datetime.date(2000, 12, 31)
    while start != end:
        if start.weekday() == 0:
            ans += 1
        start = start + datetime.timedelta(days=1)
    print(ans)

3a39e19097601b9847c81a91e9f40a70a2139859
<mask token>

<mask token>
if __name__ == '__main__':
    ans = 0
    start = datetime.date(1901, 1, 1)
    end = datetime.date(2000, 12, 31)
    while start != end:
        if start.weekday() == 0:
            ans += 1
        start = start + datetime.timedelta(days=1)
    print(ans)

import datetime
if __name__ == '__main__':
    ans = 0
    start = datetime.date(1901, 1, 1)
    end = datetime.date(2000, 12, 31)
    while start != end:
        if start.weekday() == 0:
            ans += 1
        start = start + datetime.timedelta(days=1)
    print(ans)
