PROGRAMMING:What day is today?
###Task description
Classmate X was born on "January 7, 2002". It is known that January 1, 1900 is a Monday. Do you know the day of the week when he was born? Just give you a date. Do you know the day of the week?
###Input format:
Enter three integers separated by a minus sign, such as yyyy-mm-dd, to represent a date. The date of test data is the legal date since 1900.
###Output format:
Please output the day of the week. Monday to Sunday are represented by 1 to 7.
###Input example:
```in
2002-01-07
```
###Output example:
```out
one
```
###Input example:
```in
2019-10-30
```
###Output example:
```out
three
```
answer：If there is no answer, please comment
Classmate X was born on "January 7, 2002". It is known that January 1, 1900 is a Monday. Do you know the day of the week when he was born? Just give you a date. Do you know the day of the week?
###Input format:
Enter three integers separated by a minus sign, such as yyyy-mm-dd, to represent a date. The date of test data is the legal date since 1900.
###Output format:
Please output the day of the week. Monday to Sunday are represented by 1 to 7.
###Input example:
```in
2002-01-07
```
###Output example:
```out
one
```
###Input example:
```in
2019-10-30
```
###Output example:
```out
three
```
answer：If there is no answer, please comment