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Task :: z-koren
Mr. Little Z is looking at a piece of paper and unsuccessfully trying to find the square root of a number written on the paper.

Help Mr. Little Z find the number B which is the square root of BIG number A. The number A has 1000 digits at most and the square root of A will always be an integer.

INPUT:
The first line of the standard input contains the number 0<N<=1000, where N is the number of digits in the given number A. The next N lines contain the digits of the number.

OUTPUT:
To the standard output write number M, where M represents the length of number B (where B is the square-root of the number A) and in the next M lines write the digits of the number B (from the most significant digit to the least significant).

Input:
3
6
2
5

Output:
2
2
5

Explanation:
The number written on the paper was 625, and its square-root is 25.
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Task info
Name:z-koren
Time:10 sec.
Memory:16 MB
#Tests:20
Author:Z
AddedBy: admin
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Difficulty:

3.9 (90 votes)
Quality:

4.1 (69 votes)
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