human: 写出两个矩阵相乘的代码 输入：两个3x3的矩阵
 bot: def matrix_multiplication(matrix1, matrix2):
    result = []
    for i in range(len(matrix1)):
        row = []
        for j in range(len(matrix2[0])):
            element = 0
            for k in range(len(matrix2)):
                element += matrix1[i][k] * matrix2[k][j]
            row.append(element)
        result.append(row)
    return result