Square Numbers Until Negative Encountered

You are given a sequence of integers. Your task is to compute the square of each integer and output them. Processing should stop when a negative integer is encountered, and the negative number should not be processed.

Note: The input will be provided through standard input (stdin) as space-separated integers, and the output should be printed to standard output (stdout) as space-separated squared values. If the first number is negative, output nothing.

Example:

Input:  1 3 5
Output: 1 9 25
Input:  2 -1 4
Output: 4

</p>

inputFormat

The input consists of a single line containing space-separated integers.

outputFormat

Output the squares of the processed integers as a single line of space-separated numbers. If no number is processed, output an empty line.

## sample

1 3 5

1 9 25