y, m, d = map(int, input().split())
if 1989 < y < 2019:
    print('Yes')
else:
    if y == 1989:
        if 1 < m:
            print('Yes')
        elif 8 <= d:
            print('Yes')
        else:
            print('No')
    elif y == 2019:
        if m < 4:
            print('Yes')
        elif m == 4 and d <= 30:
            print('Yes')
        else:
            print('No')
    else:
        print('No')