"""
Task

The provided code stub reads and integer, n, from STDIN. For all non-negative integers i < n, print.

Example

The list of non-negative integers that are less than  == 3 is [0, 1, 2]. Print the square of each number on a separate
line.

    0
    1
    4

Input Format

The first and only line contains the integer, n.

Constraints

1 <= n <= 20

Output Format

Print n lines, one corresponding to each i.

Sample Input 0

    5

Sample Output 0

    0
    1
    4
    9
    16
"""
if __name__ == '__main__':
    n = int(input())

    for i in range(n):
        print(i ** 2)
