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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 ccmodmd_relax(k):
 """Do relaxation for the ccmod stage. The only parameter is the slice index `k` and there are no return values; all inputs and outputs are from and to global variables. """


    mp_D_X[k] = mp_drlx * mp_D_X[k] + (1 - mp_drlx) * mp_D_Y0
    mp_DX[k] = mp_drlx * mp_DX[k] + (1 - mp_drlx) * (mp_D_Y1[k] + mp_S[k])