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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def create_text_header(lines):
 """Format textual header Create a "correct" SEG-Y textual header. Every line will be prefixed with C## and there are 40 lines. The input must be a dictionary with the line number[1-40] as a key. The value for each key should be up to 76 character long string. Parameters lines : dict `lines` dictionary with fields: - ``no`` : line number (`int`) - ``line`` : line (`str`) Returns ------- text : str """


    rows = []
    for line_no in range(1, 41):
        line = ""
        if line_no in lines:
            line = lines[line_no]
        row = "C{0:>2} {1:76}".format(line_no, line)
        rows.append(row)

    rows = ''.join(rows)
    return rows