Description

A hospital wants to analyze whether the occurrence of a certain disease is related to age. They need to organize past diagnostic records and calculate the proportion of patients in four age groups: 0-18, 19-35, 36-60, and 61 or above (inclusive), relative to the total number of patients.

Input Format

There are two lines of input:

• The first line contains the number of past patients, n (0 < n ≤ 100).
• The second line lists the age of each patient at the time of diagnosis.

Output Format

Output the proportion of patients in each of the four age groups (0-18, 19-35, 36-60, and 61 or above) as a percentage of the total number of patients. The results should be printed with two decimal places in percentage format. Each age group should be printed on a separate line, totaling four lines.

10
1 11 21 31 41 51 61 71 81 91

20.00%
20.00%
20.00%
40.00%

译文

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