PROGRAMMING:Find the person with the most attendance - heboost
According to the teacher's roster, find the person with the most attendance.
###Input format:
The attendance record is given in a single line, and the data is directly divided by spaces.
###Output format:
Single line output (if there are more than one person, the person's name is directly separated by space, and there is no space at the end).
###Input example:
Here is a set of inputs. For example:
```in
zs ls ww ml zs ls ml zs ww
```
###Output example:
The corresponding output is given here. For example:
```out
zs
```
answer：If there is no answer, please comment
###Input format:
The attendance record is given in a single line, and the data is directly divided by spaces.
###Output format:
Single line output (if there are more than one person, the person's name is directly separated by space, and there is no space at the end).
###Input example:
Here is a set of inputs. For example:
```in
zs ls ww ml zs ls ml zs ww
```
###Output example:
The corresponding output is given here. For example:
```out
zs
```
answer：If there is no answer, please comment