#描述#
I'm sure that you must be familiar with this equation: x^3=a where a is an positive integer less than 22.
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I will give the value of a, and you tell me the value of x round to 100 decimal place.

#格式#
##输入格式##
first line, a integer N indicates the number of test case.
Then N lines follow, each line contains an integer a. (1&lt=a&lt=21)

##输出格式##
the value of x.

#样例1#
##样例输入1##

4
1
3
8
20

##样例输出1##

1.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
1.4422495703074083823216383107801095883918692534993505775464161945416875968299973398547554797056452567
2.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
2.7144176165949065715180894696794892048051077694890969572843654428033085563287658494871973768515010450

#限制#
1000ms
32768KB

#提示#
是四舍五入到小数点后100位

#来源#
zjut_DD