#描述#
Singles Day, One's Day or Guang Gun Jie (Chinese: 光棍节; pinyin: guāng gùn jié; Wade–Giles: kuang kun chieh; literally "bare sticks holiday") is a Chinese pop culture holiday on November 11 for people who are still living the single life.<BR>
Singles' Day was initially celebrated at various universities in Nanjing during the 1990s, and originated from Nanjing University in 1993. It got the name Singles Day because the date consists of four "ones". These college students have since graduated, and carried the university tradition into society. The Singles Day has been largely popularized in the internet era and is now a special day for all fashionable youths. It is a special Singles' Day on November 11, 2011. Because there are six "ones" in the date number. It is really rare, so it is called Shen Gun Jie. Maybe the youths think it more meaningful than Singles' Day before.<BR>
The main way to celebrate Singles' Day is to have dinner with your single friends, but it's important that each person pay their own way to show their independence. They would like to send short messages or e-mails to their single friends to deliver their best wishes. People also hold 'blind date' parties in an attempt to bid goodbye to their single lives. Not every single is happy on this day. They may tease themselves for being still single as a university student. Somebody prefer to watch movies in a theatre. Some schools of a university would put forward a special program to gether singles together for celebration. In recent years, there are more social attention on this day. For example, Taobaoshangcheng gives a 50% account on this day. There are many activities in the Internet for singles to bid goodbye to their single lives.<BR>
2011 marked the 'Singles' Day of the Century' (shiji guanggunjie), this year having six '1' in the rare date and an excuse to take celebrations to a higher notch[1]. Shopping promotions were highlighted throughout China and activities were widespread. Although this date comes to celebrate singlehood, the desire to find a spouse and date is also expressed by young Chinese in this date, and other love-related issues are discussed by the Chinese media on this day.<BR>
For breakfast on Singles' Day, singles often eat four Youtiao (deep-fried dough sticks) representing the four "ones" in "11.11" and one Baozi (steamed stuffed bun) representing the middle dot.<BR>
Some singles also choose to say goodbye to their single lives on this day: many attend 'blind date' parties and many people choose to marry on this day. In 2011, higher amounts of marriages occurred in Hong Kong and Beijing on November 11 than the average daily amount.[2] In addition to meaning 'single,' the four 'ones' of the date can also mean 'only one' as in 'the only one for me.' Some people will use this date and this meaning to tell their special someone that they are the only 'one' in their heart.
In episode 6 of The Apprentice (UK Series Four), team Alpha decided to make a range of themed greeting cards revolving around National Singles' Day[3], which met mixed success from buyers Clinton Cards, Celebrations and Tesco. Initially, the team planned to have it on February 13th, the day before Valentine's Day. However, Clinton Cards and Tesco questioned their decision as to why celebrate it before Valentine's Day considering it's one of the card's major seasons like Christmas and have the day competed with Valentine's Day. Tesco also pointed out who would send cards to single people.<BR>
YY is getting bored of Computing Graphics, and wants to switch to an exciting new career in Softing. On Singles Day (11:11 AM on 11/11/11), he made a big decision, start soft learning.<BR>
Since Singles Day has passed, YY want to know the total number of minutes he had enjoyed in sortware area. Unfortunately, YY's time management ability is quite poor, so he wants to write a quick program to help him make sure the time he learn in Software. Given the date and time he calculated, please help YY compute the total number of minutes.<BR>

#格式#
##输入格式##
Line 1: This line contains 3 space-separated integers, D H M, specifying the date and time at which YY start calcluating. D will be an integer in the range 11..14 telling the day of the month; H and M are hours and minutes on a 24-hour clock (so they range from H=0,M=0 at midnight up through H=23,M=59 at 11:59 PM).

##输出格式##
* Line 1: The total number of minutes spent by YY in the Software, or -1 if he's calculated time is earlier than he starting time.

#样例1#
##样例输入1##

12 13 14

##样例输出1##

1563

#限制#
1000ms
32768KB

#提示#

#来源#
Brilliant