class Matrix:
    def __init__(self, matrix_string):
        self.matrix = []
        for line in matrix_string.strip().split('\n'):
            row = []
            for v in line.split(" "): row.append(int(v))
            self.matrix.append(row)

    def row(self, index):
        return self.matrix[index-1]

    def column(self, index):
        column = []
        for row in self.matrix: column.append(row[index-1])

        return column