def main():
    i = input()
    lst=i.split(' ')
    Y,M,D=map(int,lst)
    if Y < 1988:
        print('NO')
    if Y == 1989 and M == 1 and D <= 7:
        print('NO')
    if Y == 1989 and M == 1 and D >= 8:
        print('YES')
    if Y == 1989 and M >= 2:
        print('YES')
    if 1990 <= Y <= 2018:
        print('YES')
    if Y == 2019 and M <= 4:
        print('YES')
    if Y == 2019 and M >= 5:
        print('NO')
    if Y >= 2020:
        print('NO')


if __name__ == '__main__':
    main()