Problem Description

Output the sequence $ a $ as a comma-separated string in one line.

Input Format

None

Output Format

None

Sample Input and Output

Sample Input #1

5
3 1 5 4 2

Sample Output #1

3,1,5,4,2

Sample Input #2

6
1 2 3 4 5 6

Sample Output #2

1,2,3,4,5,6

Sample Input #3

7
7 6 5 4 3 2 1

Sample Output #3

7,6,5,4,3,2,1

Sample Input #4

20
19 11 10 7 8 9 17 18 20 4 3 15 16 1 5 14 6 2 13 12

Sample Output #4

19,11,10,7,8,9,17,18,20,4,3,15,16,1,5,14,6,2,13,12

Notes/Hints

Constraints

• $1 \leq N \leq 100$

见题面 Input 部分

见题面 Output 部分