def convert_column_to_string(matrix, col):
rows = len(matrix)
result = []
for i in range(rows):
result.append(str(matrix[i][col]))
return ' '.join(result)
matrix = [
[4, 7, 9, 18, 29, 0],
[1, 9, 18, 99, 4, 3],
[9, 17, 89, 2, 7, 5],
[19, 49, 6, 1, 9, 8],
[29, 4, 7, 9, 18, 6]
]
col = 3
result_str = convert_column_to_string(matrix, col)
print(result_str)
'''
run:
18 99 2 1 9
'''