function [u,v,z] = multiaccess;   

% multiaccess communication

 u=[ -1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00];
 v=[  1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
   1.0000000e+00
  -1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00
   1.0000000e+00];
z=[  -1.8835046e+00
  -1.9373161e+00
   2.0075080e+00
   3.5160690e-02
   1.9303487e+00
  -1.8303858e+00
   5.9059778e-03
   1.7970718e-01
  -1.9735931e+00
  -1.9128327e+00
  -1.4461715e-01
   1.9298835e+00
   1.2459821e-01
  -2.0638977e+00
   5.7735022e-02
  -3.6002963e-02
   1.9864424e+00
   1.8650662e+00
   1.8729550e+00
   2.0984570e+00
  -4.4880614e-03
  -2.0798945e+00
   1.9234828e+00
   8.6173490e-02
   1.9943775e+00
   5.1347817e-02
   3.9668087e-02
   7.5621897e-02
  -1.9599514e+00
   1.8658619e+00
   3.7504102e-02
   2.1125162e+00
   2.0728642e+00
  -2.3774543e-01
  -2.0273782e+00
  -2.0322940e+00
   3.1798792e-02
  -5.1117221e-02
   1.9997959e+00
   1.6065110e-01
   8.4764863e-02
   2.0268101e+00
  -9.2348909e-02
  -7.0499388e-03
   1.4789135e-02
   1.9442906e+00
  -2.0336706e+00
   4.1522746e-02
   1.5578135e-01
  -2.4442989e-01
  -2.1098195e+00
   1.1226479e-01
   5.8166726e-02
  -2.7135430e-02
  -1.9585809e+00
   1.9022186e+00
   1.8978534e+00
   2.0317688e+00
   1.5161078e-01
   2.0749432e+00
  -2.0507700e+00
   8.8529945e-02
  -2.4809355e-02
  -7.2624900e-02
  -4.4504030e-02
   1.9387089e+00
  -2.0209144e+00
   5.6214783e-02
   1.8936077e+00
   2.0351589e+00
   1.1329999e-01
   2.0149994e+00
   7.0314405e-02
  -5.2411585e-03
   2.2018496e+00
   2.0924159e+00
  -1.8141147e-01
  -1.9965027e+00
  -1.8078621e-01
   1.0281925e-01
   2.0394600e+00
   6.3940564e-02
   8.7421289e-02
   2.1752402e+00
  -3.2005083e-02
  -1.3741381e-02
  -1.9384230e+00
  -1.9022106e+00
  -1.1153477e-01
  -5.5002145e-02
   2.0039885e+00
  -2.2482843e+00
   1.1586547e-01
  -1.0262795e-01
  -1.8846513e+00
  -7.8645661e-02
  -1.9365191e+00
  -1.9179590e+00
  -2.0176027e+00
  -1.9437526e+00
   1.9872557e+00
   2.0554172e+00
  -2.1097344e+00
  -7.3130140e-02
  -1.8595268e+00
   1.9379786e+00
   2.3714877e-02
  -1.5868470e-01
   1.9598515e+00
   1.9229308e+00
  -2.6268051e-02
  -1.9023510e+00
   9.7781504e-02
   2.1170021e+00
   1.5931086e-02
   4.9952085e-02
  -2.1055375e+00
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  -1.9101306e+00
   4.3870510e-02
   1.8752656e+00
  -1.9675333e+00
   3.9007041e-02
  -2.0405138e+00
   2.9231488e-02
   2.5659102e-01
  -4.5781564e-02
   1.8389173e+00
  -2.2669524e+00
  -7.5969665e-02
  -2.0674721e+00
  -2.1171687e+00
   2.0329300e-01
   2.0968481e+00
   2.0670292e+00
   4.2014604e-02
  -2.8727513e-01
  -1.8314126e+00
   2.7924554e-03
  -9.0203058e-02
  -2.2053257e+00
   8.9086298e-03
   2.0870991e-01
   3.6511846e-02
  -1.9153894e+00
   1.9815462e+00
   1.0307144e-01
  -1.5276227e-01
   9.6493896e-02
   2.0526163e+00
  -1.8445412e-02
   1.9878283e-02
   1.5904268e-01
   2.0032192e+00
  -1.9110836e+00
  -2.1299152e+00
  -1.8817427e+00
   1.8174717e-01
  -2.0584302e+00
   1.8989326e+00
  -9.6049831e-02
   6.9115958e-02
  -7.5861821e-02
  -9.6971733e-03
  -2.1406949e+00
   2.1030812e+00
  -7.5987440e-02
  -1.9125873e+00
  -1.9238873e+00
  -1.6592345e-02
  -1.9699093e+00
  -3.2246733e-02
  -3.6841128e-02
  -1.8852105e+00
  -1.9958570e+00
  -1.0980497e-01
   2.1566724e+00
  -1.0484234e-01
   4.2272368e-02
  -2.0844414e+00
  -3.1162976e-02
   3.9781048e-02
  -1.8950214e+00
  -3.4079556e-02
   3.3629700e-02
   1.9778639e+00
   2.0016649e+00
  -1.1923612e-01
  -1.3164630e-02
  -1.8512476e+00
   1.9163179e+00
  -1.3009819e-01
   1.5741319e-01
   2.1166040e+00
   7.8642969e-02
   1.8538361e+00
   2.1554466e+00
   1.9402465e+00
   1.8789432e+00
  -7.0266880e-02
   3.5642939e-02
   6.5263567e-02
  -1.9784329e+00
  -2.6389619e-02
   1.8024402e-01
  -2.0642984e+00
  -1.9890445e+00
  -7.1903770e-02
   4.2062757e-02
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   6.6029978e-02
   1.8897490e+00
  -1.0297064e-02
   1.8940198e+00
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   2.1211584e-02
   4.9344199e-02
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   6.4493275e-02
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   1.8971155e+00
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   3.9672705e-02
   1.9472885e+00
  -1.9655429e+00
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   1.2681934e-01
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   2.1804836e-01
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   2.5107814e-02
   1.9689529e+00
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   8.6250019e-02
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   1.9807327e+00
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   3.0659592e-02
   2.0968992e+00
  -7.4731713e-02
   1.7203976e+00
  -1.9303268e+00
   3.2069075e-01
   5.3600704e-02
   2.0298451e+00
   2.8404316e-02
  -1.9040336e+00
  -1.7912407e+00
   1.5246805e-01
  -2.0195261e+00
  -1.9982740e+00
   2.4634044e-02
  -2.0854485e+00
   2.1157783e+00
   1.6190772e-02
   1.5570638e-01
  -2.0193544e+00
  -1.8348699e+00
  -1.8987782e-01
   1.8225248e-01
  -2.1518415e+00
   1.8948929e+00
   4.9930513e-03
  -2.1454749e+00
   4.6654585e-02
   5.4543684e-02
   1.3203191e-01
  -4.0449433e-02
  -1.9581531e+00
  -1.9752651e+00
   2.0704110e+00
   6.3193885e-02
   1.9007638e+00
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   1.9251911e+00
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   1.3948307e-01
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   4.9171688e-02
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   2.4494367e-02
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   2.1208557e+00
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   6.0554030e-02
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   2.1001450e+00  
  -1.0249047e-01
   1.8943154e+00
   2.2887723e+00
   1.9732256e+00
   1.9511460e+00];
