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# 根据给定的年月日以数字的形式打印出日期
months = [
'January',
'February',
'March',
'April',
'May',
'June',
'July',
'August',
'September',
'Octorber',
'November',
'December'
]

# 以1~31的数字作为结尾的列表
endings = ['st', 'nd', 'rd'] + 17 * ['th'] \
+ ['st', 'nd', 'rd'] + 7 * ['th']\
+ ['st']

year = input('Year: ')
month = input('Month (1-12): ')
day = input('Day (1-31): ')

month_number = int(month)
day_number = int(day)

#记得要将月份和天数减1，以获得正确的索引
month_name = months[month_number-1]
ordinal = day + endings[day_number-1]

print month_name ordinal + ', ' + year