Max Num

Time Limit: 1000/1000 MS (Java/Others)

Memory Limit: 32768/32768 K (Java/Others)

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Description

There are some students in a class, Can you help teacher find the highest student .

Input

There are some cases. The first line contains an integer t, indicate the cases; Each case have an integer n ( 1 ≤ n ≤ 100 ) , followed n students’ height.

Output

For each case output the highest height, the height to two decimal plases;

Sample Input

2 3 170.00 165.00 180.00 4 165.00 182.00 172.00 160.00

Sample Output

180.00 182.00

Hint

linle

Source

浙江工业大学网络选拔赛

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