PROGRAMMING:Age and disease
###Task description
If a hospital wants to make statistics on whether the acquisition of a certain disease is related to age, it needs to sort out the previous diagnosis records, and calculate the proportion of the number of patients in the total number of patients according to the four age groups of 0-18, 19-35, 36-60 and above (including 61).
###Input format:
The first line is the number of past patients n (0 < n < = 100), and the second line is the age of each patient at the time of illness.
###Output format:
According to the four age groups of 0-18, 19-35, 36-60, 61 and above (including 61), the proportion of the number of patients in this period in the total number of patients is output in the form of percentage, accurate to two decimal places. One line for each age group, four lines in total.
###Input example:
```in
ten
1 11 21 31 41 51 61 71 81 91
```
###Output example:
```out
20%
20%
20%
40%
```
###Title Source
Note: this topic is selected from openjudge website http://noi.openjudge.cn/ch0106/05/
answer：If there is no answer, please comment
If a hospital wants to make statistics on whether the acquisition of a certain disease is related to age, it needs to sort out the previous diagnosis records, and calculate the proportion of the number of patients in the total number of patients according to the four age groups of 0-18, 19-35, 36-60 and above (including 61).
###Input format:
The first line is the number of past patients n (0 < n < = 100), and the second line is the age of each patient at the time of illness.
###Output format:
According to the four age groups of 0-18, 19-35, 36-60, 61 and above (including 61), the proportion of the number of patients in this period in the total number of patients is output in the form of percentage, accurate to two decimal places. One line for each age group, four lines in total.
###Input example:
```in
ten
1 11 21 31 41 51 61 71 81 91
```
###Output example:
```out
20%
20%
20%
40%
```
###Title Source
Note: this topic is selected from openjudge website http://noi.openjudge.cn/ch0106/05/
answer：If there is no answer, please comment