Heads 

The probability of n heads in a row tossing a fair coin is 2^-n

Input 

r lines containing each one an integer number n. The values of r and n are as follows: 0< r < 10, $0< n \le 9000$.

Output 

Print r lines each with the value of 2^-n for the given values of n, using the format:

2^-n = x.xxxE-y

where each x is a decimal digit and each y is a decimal integer with no leading zeroes or spaces.

Sample Input 

8271
6000
1

Sample Output 

2^-8271 = 1.517E-2490
2^-6000 = 6.607E-1807
2^-1 = 5.000E-1