CF1436B.Prime Square

传统题 时间 2000 ms 内存 256 MiB 4 尝试 1 已通过 1 标签

Prime Square

Sasha likes investigating different math objects, for example, magic squares. But Sasha understands that magic squares have already been studied by hundreds of people, so he sees no sense of studying them further. Instead, he invented his own type of square — a prime square.

A square of size n×nn \times n is called prime if the following three conditions are held simultaneously:

  • all numbers on the square are non-negative integers not exceeding 10510^5;
  • there are no prime numbers in the square;
  • sums of integers in each row and each column are prime numbers.

Sasha has an integer nn. He asks you to find any prime square of size n×nn \times n. Sasha is absolutely sure such squares exist, so just help him!

Input

The first line contains a single integer tt (1t101 \le t \le 10) — the number of test cases.

Each of the next tt lines contains a single integer nn (2n1002 \le n \le 100) — the required size of a square.

Output

For each test case print nn lines, each containing nn integers — the prime square you built. If there are multiple answers, print any.

Samples

2
4
2
4 6 8 1
4 9 9 9
4 10 10 65
1 4 4 4
1 1
1 1

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