x1 x2 y
  1  1  0
  2  1  0
  3  0  0
  4  1  0
  5  0  0
  6  0  0
  7  0  0
  8  1  0
  9  1  0
  10  1  0
  11  0  0
  12  0  0
  13  1  0
  14  0  0
  15  0  0
  16  0  0
  17  0  0
  18  1  0
  19  1  0
  20  0  0
  21  0  0
  22  1  0
  23  1  0
  24  1  0
  25  1  0
  26  1  0
  27  1  0
  28  0  0
  29  1  0
  30  0  0
  31  0  0
  32  0  1
  33  0  0
  34  0  0
  35  1  0
  36  0  0
  37  1  0
  38  0  0
  39  0  0
  40  1  0
  41  1  0
  42  1  0
  43  0  0
  44  0  1
  45  1  1
  46  0  0
  47  0  1
  48  1  0
  49  0  0
  50  1  0
  51  0  0
  52  1  0
  53  1  0
  54  1  0
  55  1  0
  56  0  1
  57  1  0
  58  0  1
  59  1  0
  60  1  1
  61  1  0
  62  0  1
  63  1  0
  64  1  0
  65  1  0
  66  0  1
  67  1  0
  68  0  1
  69  1  0
  70  0  1
  71  1  0
  72  0  0
  73  1  1
  74  1  0
  75  1  0
  76  0  1
  77  0  1
  78  0  1
  79  1  0
  80  0  0
  81  0  1
  82  0  1
  83  0  1
  84  0  1
  85  1  1
  86  0  1
  87  1  0
  88  1  0
  89  0  1
  90  1  1
  91  1  1
  92  0  1
  93  0  1
  94  1  1
  95  0  1
  96  1  1
  97  0  1
  98  0  1
  99  1  1
  100  0  1