import pulsar as psr
def load_ref_system():
    """ Returns c175 as found in the IQMol fragment library.
        All credit to https://github.com/nutjunkie/IQmol
    """
    return psr.make_system("""
      C          6.13577        1.01204        1.01204
      C          4.46720        2.66838        0.80598
      C          4.46720        0.80598        2.66838
      C          5.42833        0.06360        1.80545
      C          4.59670       -0.94735        0.94735
      C          4.37102       -2.76136        2.76136
      C          4.37102        2.76136       -2.76136
      C          5.42833        1.80545        0.06360
      C          4.59670        0.94735       -0.94735
      C          6.13577       -1.01204       -1.01204
      C          5.42833       -0.06360       -1.80545
      C          4.46720       -0.80598       -2.66838
      C          5.42833       -1.80545       -0.06360
      C          4.46720       -2.66838       -0.80598
      C          2.66838        0.80598        4.46720
      C          0.80598        2.66838        4.46720
      C          1.01204        1.01204        6.13577
      C          2.76136       -2.76136        4.37102
      C          1.80545        0.06360        5.42833
      C          0.94735       -0.94735        4.59670
      C          2.66838        4.46720        0.80598
      C          1.01204        6.13577        1.01204
      C          0.80598        4.46720        2.66838
      C          2.66319        2.66319        2.66319
      C          3.63788        1.82541        1.82541
      C          2.71270        0.90119        0.90119
      C          1.82541        3.63788        1.82541
      C          0.90119        2.71270        0.90119
      C          1.82541        1.82541        3.63788
      C          0.90119        0.90119        2.71270
      C          3.55750        0.08942        3.55750
      C          2.72773       -0.91428        2.72773
      C          3.67584       -1.82650        1.82650
      C          2.72773       -2.72773        0.91428
      C          1.80510       -0.01634        1.80510
      C          0.90697       -0.90697        0.90697
      C          1.82650       -1.82650        3.67584
      C          0.91428       -2.72773        2.72773
      C          3.63884       -3.63884        3.63884
      C          2.76136       -4.37102        2.76136
      C          1.82650       -3.67584        1.82650
      C          0.94735       -4.59670        0.94735
      C          2.76136        4.37102       -2.76136
      C          1.80545        5.42833        0.06360
      C          0.94735        4.59670       -0.94735
      C          3.55750        3.55750        0.08942
      C          2.72773        2.72773       -0.91428
      C          3.67584        1.82650       -1.82650
      C          2.72773        0.91428       -2.72773
      C          1.82650        3.67584       -1.82650
      C          0.91428        2.72773       -2.72773
      C          1.80510        1.80510       -0.01634
      C          0.90697        0.90697       -0.90697
      C          3.63735        0.00000       -0.00000
      C          2.71270       -0.90119       -0.90119
      C          3.63788       -1.82541       -1.82541
      C          2.66319       -2.66319       -2.66319
      C          1.80510        0.01634       -1.80510
      C          0.90119       -0.90119       -2.71270
      C          1.80510       -1.80510        0.01634
      C          0.90119       -2.71270       -0.90119
      C          3.55750       -3.55750       -0.08942
      C          2.66838       -4.46720       -0.80598
      C          1.82541       -3.63788       -1.82541
      C          0.80598       -4.46720       -2.66838
      C          1.80545       -5.42833       -0.06360
      C          1.01204       -6.13577       -1.01204
      C          3.63884        3.63884       -3.63884
      C          2.76136        2.76136       -4.37102
      C          1.82650        1.82650       -3.67584
      C          0.94735        0.94735       -4.59670
      C          3.55750       -0.08942       -3.55750
      C          2.66838       -0.80598       -4.46720
      C          1.80545       -0.06360       -5.42833
      C          1.01204       -1.01204       -6.13577
      C          1.82541       -1.82541       -3.63788
      C          0.80598       -2.66838       -4.46720
      C          0.06360        1.80545        5.42833
      C         -0.94735        0.94735        4.59670
      C         -2.76136        2.76136        4.37102
      C         -1.01204       -1.01204        6.13577
      C         -0.06360       -1.80545        5.42833
      C         -0.80598       -2.66838        4.46720
      C         -1.80545       -0.06360        5.42833
      C         -2.66838       -0.80598        4.46720
      C          0.06360        5.42833        1.80545
      C         -0.94735        4.59670        0.94735
      C         -2.76136        4.37102        2.76136
      C          0.08942        3.55750        3.55750
      C         -0.91428        2.72773        2.72773
      C         -0.01634        1.80510        1.80510
      C         -0.90697        0.90697        0.90697
      C         -1.82650        3.67584        1.82650
      C         -2.72773        2.72773        0.91428
      C         -1.82650        1.82650        3.67584
      C         -2.72773        0.91428        2.72773
      C          0.00000       -0.00000        3.63735
      C         -0.90119       -0.90119        2.71270
      C          0.01634       -1.80510        1.80510
      C         -0.90119       -2.71270        0.90119
      C         -1.80510        0.01634        1.80510
      C         -2.71270       -0.90119        0.90119
      C         -1.82541       -1.82541        3.63788
      C         -2.66319       -2.66319        2.66319
      C         -0.08942       -3.55750        3.55750
      C         -0.80598       -4.46720        2.66838
      C         -0.06360       -5.42833        1.80545
      C         -1.01204       -6.13577        1.01204
      C         -1.82541       -3.63788        1.82541
      C         -2.66838       -4.46720        0.80598
      C         -1.01204        6.13577       -1.01204
      C         -0.06360        5.42833       -1.80545
      C         -0.80598        4.46720       -2.66838
      C         -1.80545        5.42833       -0.06360
      C         -2.66838        4.46720       -0.80598
      C         -0.00000        3.63735        0.00000
      C         -0.90119        2.71270       -0.90119
      C          0.01634        1.80510       -1.80510
      C         -0.90119        0.90119       -2.71270
      C         -1.82541        3.63788       -1.82541
      C         -2.66319        2.66319       -2.66319
      C         -1.80510        1.80510        0.01634
      C         -2.71270        0.90119       -0.90119
      C          0.00000        0.00000        0.00000
      C         -0.90697       -0.90697       -0.90697
      C         -0.01634       -1.80510       -1.80510
      C         -0.91428       -2.72773       -2.72773
      C         -1.80510       -0.01634       -1.80510
      C         -2.72773       -0.91428       -2.72773
      C         -1.80510       -1.80510       -0.01634
      C         -2.72773       -2.72773       -0.91428
      C          0.00000       -3.63735       -0.00000
      C         -0.94735       -4.59670       -0.94735
      C          0.06360       -5.42833       -1.80545
      C         -1.82650       -3.67584       -1.82650
      C         -2.76136       -4.37102       -2.76136
      C         -1.80545       -5.42833        0.06360
      C         -0.08942        3.55750       -3.55750
      C         -0.80598        2.66838       -4.46720
      C         -0.06360        1.80545       -5.42833
      C         -1.01204        1.01204       -6.13577
      C         -1.82541        1.82541       -3.63788
      C         -2.66838        0.80598       -4.46720
      C         -0.00000        0.00000       -3.63735
      C         -0.94735       -0.94735       -4.59670
      C          0.06360       -1.80545       -5.42833
      C         -1.80545        0.06360       -5.42833
      C         -1.82650       -1.82650       -3.67584
      C         -2.76136       -2.76136       -4.37102
      C          0.08942       -3.55750       -3.55750
      C         -3.63884        3.63884        3.63884
      C         -4.37102        2.76136        2.76136
      C         -3.67584        1.82650        1.82650
      C         -4.59670        0.94735        0.94735
      C         -3.55750       -0.08942        3.55750
      C         -4.46720       -0.80598        2.66838
      C         -3.63788       -1.82541        1.82541
      C         -4.46720       -2.66838        0.80598
      C         -5.42833       -0.06360        1.80545
      C         -6.13577       -1.01204        1.01204
      C         -3.55750        3.55750       -0.08942
      C         -4.46720        2.66838       -0.80598
      C         -3.63788        1.82541       -1.82541
      C         -4.46720        0.80598       -2.66838
      C         -5.42833        1.80545       -0.06360
      C         -6.13577        1.01204       -1.01204
      C         -3.63735       -0.00000        0.00000
      C         -4.59670       -0.94735       -0.94735
      C         -3.67584       -1.82650       -1.82650
      C         -4.37102       -2.76136       -2.76136
      C         -5.42833        0.06360       -1.80545
      C         -5.42833       -1.80545        0.06360
      C         -3.55750       -3.55750        0.08942
      C         -3.55750        0.08942       -3.55750
      C         -3.63884       -3.63884       -3.63884
        """)
