import pandas

def read(filename):
    # Get time
    df = pandas.read_csv(filename,skiprows=0,nrows=1)
    time = df['t (s)'].to_numpy()[0]

    df = pandas.read_csv(filename,skiprows=2,nrows=1,header=None)
    x = df.to_numpy()[0][1:]
    df = pandas.read_csv(filename,skiprows=3,header=None)
    f = []
    for col in df:
        if col == 0:
            v = df[col].to_numpy()
        else:
            f.append(df[col].to_numpy())

    return time, x, v, f