PROGRAMMING:Love donation
Since the outbreak of novel coronavirus pneumonia, the epidemic prevention and control situation has been affecting the heartstrings of the whole nation: white warriors take the lead and guard life. All walks of life are based on their posts to overcome difficulties; Countless volunteers work together and contribute silently
In the "epidemic" of this war, every Chinese is in love with Wuhan and makes his own contribution.
Party members and teachers of the Institute of information technology have taken the initiative to donate money to Wuhan and other epidemic areas in Hubei Province to cheer for Wuhan and China.
The leaders of the college donate 2000 yuan per person, and the teachers of ordinary Party members donate 1000 yuan per person. Please print the total amount of donation according to the number of people entered.
###Input format:
Give two integers in a row that are both less than 100 and greater than 0, separated by spaces. The first integer represents the number of leaders, and the second integer represents the number of ordinary Party members and teachers.
###Output format:
Total output amount.
###Input example:
```in
10 60
```
###Output sample
```out
eighty thousand
```
answer：If there is no answer, please comment
In the "epidemic" of this war, every Chinese is in love with Wuhan and makes his own contribution.
Party members and teachers of the Institute of information technology have taken the initiative to donate money to Wuhan and other epidemic areas in Hubei Province to cheer for Wuhan and China.
The leaders of the college donate 2000 yuan per person, and the teachers of ordinary Party members donate 1000 yuan per person. Please print the total amount of donation according to the number of people entered.
###Input format:
Give two integers in a row that are both less than 100 and greater than 0, separated by spaces. The first integer represents the number of leaders, and the second integer represents the number of ordinary Party members and teachers.
###Output format:
Total output amount.
###Input example:
```in
10 60
```
###Output sample
```out
eighty thousand
```
answer：If there is no answer, please comment