CF1004D.Sonya and Matrix

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题目描述

Since Sonya has just learned the basics of matrices, she decided to play with them a little bit.

Sonya imagined a new type of matrices that she called rhombic matrices. These matrices have exactly one zero, while all other cells have the Manhattan distance to the cell containing the zero. The cells with equal numbers have the form of a rhombus, that is why Sonya called this type so.

The Manhattan distance between two cells ( x1x_1 , y1y_1 ) and ( x2x_2 , y2y_2 ) is defined as x1x2+y1y2|x_1 - x_2| + |y_1 - y_2| . For example, the Manhattan distance between the cells (5,2)(5, 2) and (7,1)(7, 1) equals to 57+21=3|5-7|+|2-1|=3 .

Example of a rhombic matrix.Note that rhombic matrices are uniquely defined by nn , mm , and the coordinates of the cell containing the zero.

She drew a n×mn\times m rhombic matrix. She believes that you can not recreate the matrix if she gives you only the elements of this matrix in some arbitrary order (i.e., the sequence of nmn\cdot m numbers). Note that Sonya will not give you nn and mm , so only the sequence of numbers in this matrix will be at your disposal.

Write a program that finds such an n×mn\times m rhombic matrix whose elements are the same as the elements in the sequence in some order.

输入格式

The first line contains a single integer tt ( 1t1061\leq t\leq 10^6 ) — the number of cells in the matrix.

The second line contains tt integers a1,a2,,ata_1, a_2, \ldots, a_t ( 0ai<t0\leq a_i< t ) — the values in the cells in arbitrary order.

输出格式

In the first line, print two positive integers nn and mm ( n×m=tn \times m = t ) — the size of the matrix.

In the second line, print two integers xx and yy ( 1xn1\leq x\leq n , 1ym1\leq y\leq m ) — the row number and the column number where the cell with 00 is located.

If there are multiple possible answers, print any of them. If there is no solution, print the single integer 1-1 .

输入输出样例

  • 输入#1

    20
    1 0 2 3 5 3 2 1 3 2 3 1 4 2 1 4 2 3 2 4
    

    输出#1

    4 5
    2 2
    
  • 输入#2

    18
    2 2 3 2 4 3 3 3 0 2 4 2 1 3 2 1 1 1
    

    输出#2

    3 6
    2 3
    
  • 输入#3

    6
    2 1 0 2 1 2
    

    输出#3

    -1
    

说明/提示

You can see the solution to the first example in the legend. You also can choose the cell (2,2)(2, 2) for the cell where 00 is located. You also can choose a 5×45\times 4 matrix with zero at (4,2)(4, 2) .

In the second example, there is a 3×63\times 6 matrix, where the zero is located at (2,3)(2, 3) there.

In the third example, a solution does not exist.

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