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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 get_left_right(seq):
 """ Find position of the first and last base """

    cseq = seq.strip(GAPS)
    leftjust = seq.index(cseq[0])
    rightjust = seq.rindex(cseq[-1])

    return leftjust, rightjust