An easy Problem

Time Limit: 24000/12000 MS (Java/Others)

Memory Limit: 65536/32768 K (Java/Others)


We define eA as following:
Where A is a n×n symmetric matrix with real elements, I is an identity matrix.
Give you matrix A, your task is to calculate eA.


There are several test cases;
Each test case begin with a line contains an integer n (1≤n≤100), the following n lines contain n×n symmetric matrix A. The rang of elements of A is (-100,100);
n=0 is the end of input and need not to proceed.


For each test case, output n lines contain matrix eA , The value of elements of matrix eA must be accurate up to two decimal places. You may assume the range of elements of eA is (-10000,10000).

Sample Input

1 2 2 1 0 0 1 0

Sample Output

7.39 2.72 0.00 0.00 2.72




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